Quiz 5A Flashcards
(89 cards)
What is Exophthalmos
how to remember
Abnormal protrusion of the eyeball or eyeballs. Associated with HEAT intolerance.
(ex pat military guy will get bulged eyes since they’ve seen so much … and can’t stand heat from middle east)
What is Addison’s disease
What gland is effected?
(how to remember)
A disorder in which the adrenal glands don’t produce enough hormones (Adrenal insufficiency).
ADRENAL GLANDS
AD = ADrenal glands
What is Hashimoto’s disease
(how to remember)
What gland is effected?
Hashimoto’s disease is a condition in which your immune system attacks your THYROID, a small gland at the base of your neck below your Adam’s apple. … Inflammation from Hashimoto’s disease, also known as chronic lymphocytic thyroiditis, often leads to an UNDERactive thyroid gland (HYPOTHYROIDISM) so not enough thyroid gland hormones are produced.
(remember: Hash the neck, O = hypo … so hypothyroidism)
Thyroid (this is: Thyroiditis)
What is Grave’s disease
(how to remember)
What gland is effected?
Graves’ disease is a type of autoimmune problem that causes the thyroid gland to produce too much thyroid hormone, which is called HYPERTHYROIDISM. Graves’ disease is often the underlying cause of hyperthyroidism.
(remember: in my grave, stick my neck out to try and get out … hyperthyroid … hyperactive to try to get out of my grave … i’m in my grave cause I can’t breath)
Thyroid
Discuss the incidence and prevalence, etiology and risk factors, pathogenesis and clinical manifestations of:
OBESITY
Describe:
Incidence:
Prevalence:
Etiology:
Risk Factors:
Pathogenesis:
Clinical Manifestations:
Describe: Obesity is an excessive amount of fat in the body that contributes to many chronic diseases / early mortality / morbidity.
Incidence: It is becoming a PANDEMIC (affecting all people globally) … 300 million people worldwide. 2nd to cigarette smoking as leading cause of preventable death (500,000 deaths annually).
Prevalence: Obesity has doubled from 1980 to 2002, and TRIPLED among children. 40% of men and 45% of women are considered obese.
Etiology: Imbalance between energy intake and energy expenditure (more energy consumed / calories eaten). Inactivity and high processed foods (diet) are biggest contributors (EXERCISE AND DIET).
Risk Factors: Sedentary lifestyle, high glycemic diet (high sugar), genetic disorder, medications (food cravings increase), lifestyle / social factors.
Pathogenesis: Neuroendocrine dysfunction where genes get mutated by fat and impare CNS signaling causing food intake and body weight control issues. Also hormones play a role … stress may signal improper hormone control resulting in body fat accumulation. Maybe obese people have fewer ATP pumps in cells
Clinical Manifestations: Excess body fat :) Diabetes Mellitus (just diabetes), asthma, functional / mobility impairments, LE lymphodema, sleep apnea, atherosclerosis, HTN, CVD, CVA, Cancer, depression, binge eating, etc.
What is morbidity:
The condition of being diseased
What is bariatrics
Branch of medicine concerned with studying and managing obesity
What are 3 ways people measure obesity, and explain each:
1) BMI (body mass index)
- Considers height and weight
2) Waist circumference
- Measure circumference of waste in people with normal and overweight conditions (but it is not useful in extremely obese people to help predict morbidities).
3) Waist to hip ratio
- Measures fat stored in hips, waist, buttocks areas as predictor of morbidities
- Waist is above iliac crest, and hip is around greater trochanters.
What are the BMI ranges for:
- Underweight
- Normal
- Overweight
- Obese Class 1
- Obese Class 2
- Obese Class 3
Morbid obesity =
Underweight: <18.5 BMI Normal: 18.5-25.9 Overweight: 25-29.9 Obese Class 1: 30-34.9 Obese Class 2: 35-39.9 Obese Class 3: >40 Morbid = BMI greater than 40
Describe the medical role … and the physical therapist’s role in managing obesity.
MEDICAL:
- Diagnose (through BMI, waist to hip, etc.)
- Treatment through: surgery, weight loss, medications, behavioral and lifestyle changes
- Prognosis
PT:
- Prevention (exercise, diet, education)
- Treatment (Exercise program, movement/function after surgery)
1) What is the Endocrine System:
2) What could go wrong if endocrine system doesn’t work?
3) What are the glands in the endocrine system in each major body region:
4) T or F: Hormones could target specific organs, specific target cells, another endocrine gland, or the entire system wide?
5) Hormones are released into and travel in what?
1) The endocrine system is the collection of glands that make and secrete hormones directly into the circulatory system to be carried towards distant target organs/glands/cells. Like neurons carrying electrical action potentials to create change/movement in body, hormones do the same.
2) If your endocrine system isn’t healthy, then each hormone needed for homeostasis could become hyper or hypo active (or not work at all). You also might have problems developing during puberty, growing properly, getting pregnant, producing milk, giving birth, sexual arousal, insulin management, weak metabolism, or managing stress. You also might gain weight easily, have weak bones, or lack energy because too much sugar stays in your blood instead of moving into your cells where it’s needed for energy.
3)
BRAIN: pineal gland, hypothalamus, and pituitary gland
NECK: Thyroid and parathyroid glands
CHEST: Thymus is between your lungs
– KIDNEYS: Adrenals are on top of your kidneys
– PANCREAS: behind your stomach.
PELVIC: ovaries in a women, testes in a man.
4) TRUE
5) Bloodstream
What is a cascade:
A gland:
Target Cells:
Cascade: A chain of reactions from the release of a hormone. So hypothalamus releases a hormone to pituitary gland which sends a hormone to adrenal gland, etc. It sends hormone and cascades to trigger release of other hormones or events in body.
Gland: Anything that receives, makes, or secretes a hormone (pituitary, thyroid, pancreas, etc.)
Target Cells: A hormone can ONLY trigger a reaction in specific cells - target cells that have the correct RECEPTORS for those hormones.
Hormones are not just for feelings/emotions, sexual activity, etc.
What else do hormones do:
- Reproduction (birth contractions, milk production)
- Metabolism and energy balance
- Growth and development
- Body defenses
- General homeostasis
- Calcium regulation
- Fight and flight neurotransmitter releases
- Water, nutrient, and electrolyte balance in blood.
- *** Trigger the release of other hormones
1 and 2) Your body (brain) communicates to your body to do things (or stop doing things) via two routes. Explain
3) Which of all the glands is the MASTER GLAND
4) Which gland maintains and monitors for homeostasis, or is the COMMAND CENTER
5) What is role of hypothalamus
6) How do the hypothalamus and pituitary gland interact
7) T or F: The hypothalamus has both neural and endocrine functions?
1) Nervous system: sends super fast electrical signals to get body to move/act or do something (or stop doing something). ACTION POTENTIAL TRAVELS THROUGH NEURONS. They go fast, but don’t last long.
2) Endocrine system: This is a much SLOWER process of communication where hormones get released through blood stream. The hypothalamus will monitor what is going on in body (what hormones are too high or low), and then send signals (hormones) to PITUITARY gland which releases other hormones (cascade effect) and those go through blood stream to target cells or organ, or other gland, etc. This happens SLOWER, and thus takes longer to shut off (compared to nervous system), but the effect can last longer.
3) PITUITARY GLAND
4) Hypothalamus
5) The hypothalamus responds to a variety of signals from the internal and external environment including body temperature, hunger, feelings of being full up after eating, blood pressure and LEVELS of HORMONES in the circulation. It also responds to stress and controls our daily bodily rhythms such as the night-time secretion of melatonin from the pineal gland and the changes in cortisol (the stress hormone) and body temperature over a 24-hour period. The hypothalamus collects and combines this information and puts changes in place to correct any imbalances.
6) In some cases, the hypothalamus signals the pituitary gland to stimulate OR inhibit hormone production. Essentially, the pituitary acts after the hypothalamus prompts it. Hypothalamus sends signals down to pituitary via blood vessels (Hypothalamic-pituitary interface).
7) TRUE
Explain difference between POSITIVE feedback loop and NEGATIVE feedback loop:
T or F: there are good and bad positive feedback loops, and good and bad negative feedback loops.
** A positive feedback loop causes a self-amplifying cycle (reinforces or has it keep going) where a physiological change leads to even greater change in the SAME direction.
A negative feedback loop is a process in which the body senses a change, and activates mechanisms to reverse that change (turns it off).
TRUE
T or F: The endocrine system interacts with the nervous system constantly to maintain homeostasis?
Where do nervous system and endocrine system meet and interact?
TRUE (through the hypothalamus)
Hypothalamic-pituitary interface. Connection of blood vessels between the two glands where hormones are created and released / initiated.
Below is a list of the major glands. You need to list the:
- Where it is located in body
- Hormones
- Target Organ
- Function of each
PINEAL GLAND HYPOTHALMUS PITUITARY GLAND THYROID GLAND PARATHYROID GLAND THYMUS ADRENAL GLANDS PANCREAS OVARIES TESTES
** Review the drawing in your green binder for a break down of all of them
PINEAL GLAND: Mid brain
- Hormones: melatonin (Mid = Melatonin, M=M) - Target Organ: many - Function of each: Biological clock, sleep cycles
HYPOTHALAMUS: COMMAND CENTER. Monitors hormone levels in body and then sends signals / controls the release of the 2 hormones to posterior pituitary gland, and the 6 in anterior pituitary gland.
PITUITARY GLAND: Brain (anterior and post. lobe)
- Hormones: LOTS (see next slide) - Target Organ: many - Function of each:
THYROID GLAND: Neck
- Hormones: T3 (tri) and T4 (thyroxine), Calcitonin - Target Organ: liver - Function of each: METABOLISM
PARATHYROID GLAND: Neck
- Hormones: PTH - Target Organ: Bone, kidney, GI - Function of each: Calcification of bone (CALCIUM)
THYMUS: goes away after puberty (Hormone = thymosin)
ADRENAL GLANDS: Kidney Cortex: - Hormones: cortisol, aldosterone - Target Organ: many - Function of each: metabolism, electrolyte balance, stress balance Medulla: - Hormones: adrenaline (epinephrine, NE, dopamine) - Target Organ: widespread - Function of each: fight or flight
PANCREAS: Stomach area
- Hormones: insulin, glucagon - Target Organ: liver - Function of each: glucose homeostasis
OVARIES: Women
- Hormones: estrogen, progesterone (and testosterone)
- Target Organ: many (mainly uterus and breast)
- Function of each: female characteristics / menstrual
cycle
TESTES: Men
- Hormones: testosterone - Target Organ: many - Function of each: male characteristics
** Review the drawing in your green binder for a break down of all of them
For Pituitary Gland:
1) How many lobes?
2) Does the pituitary gland PRODUCE the hormones, or hypothalamus?
3) Post. pituitary lobe is known for how many and what hormones (and what hormones do … and how to remember each)?
4) Ant. pituitary lobe is known for how many and what hormones (and what hormones do … and how to remember each)?
5) Acronym to remember ant. pit. hormones:
6) Know about the hormones in ant. and post. lobes, and how hyper and hypopituitarism would effect these.
1) Ant and Post lobe
2) ???? I think hypothalamus sends signal for pituitary gland to release the hormones it creates.
3) Oxytocin and ADH (vasopressin)
- Oxytocin: contraction of uterus / birth contractions (ox’s have birth)
- Vasopressin (ADH): anti-diuretic hormone (helps retain fluid)
4)
- Thyroid-stimulating hormone (TSH)
- Adrenocorticotrophic hormone (ACTH)
- Prolactin (PRL): Milk production (heather a pro at milking 5 kids)
- Growth hormone (GH): Growth / Cell division
- Follicle-stimulating hormone (FSH): ovulation / mentstration (fish for creation)
- Melanocyte-stimulating hormone (MSH)
- Luteinising hormone (LH): ovulation / mentstration
5) T - the - TSH A - anterior -ACTH P - pituitary - Prolactin G - gland - GH F - finds - FSH M - more - MSH (MORE than posterior) L - luteinising - LH
6) ok
1) Discuss the neuroendocrine response to stress.
1B) If homeostasis is impacted (STRESS) what two systems kick in.
2) Catecholamines are what: (how to remember)
3) Cortisol:
4) What are Endorphins and their role?
1) The concept of stress (mental, physical, spiritual, etc.) may influence immunity. During fight or flight, sympathetic system is aroused and causes medulla of adrenal gland to release catecholamines (epinephrine, NE) into blood stream (and ant. pituitary releases other hormones into blood stream). ACTH is released from Ant. pituitary gland … which travels or cascades to adrenal gland so the cortex can release Cortisol hormone to help with stress.
1B) Disruptions in homeostasis (ie, stress) place demands on the body that are met by the activation of 2 systems, the hypothalamic-pituitary-adrenal (HPA) axis and the sympathetic nervous system (SNS).
2) Catecholamines: Epinephrine, norepinephrine, and dopamine. Help with sympathetic nervous system flight or flight. (remember: cats are high stressed so epinephrine)
3) Cortisol: Hormone in adrenal cortex, triggered by ACTH hormone from ant. pituitary gland, and it regulates metabolism, elevates blood sugar levels, dampens inflammatory response in body, and STRESS
4) CNS releases endorphins which help elevate tolerance to pain during sympathetic response (or like when you exercise). When you exercise, your body releases chemicals called endorphins. These endorphins interact with the receptors in your brain that reduce your perception of pain. Endorphins also trigger a POSITIVE feeling in the body, similar to that of morphine.
Describe the musculoskeletal signs and symptoms of endocrine disease.
- Depends on whether there is hyper or hypo secretion of certain hormones, and which gland was effected.
- Growth and development of connective tissue is impacted by hormones and metabolic processes. So if hormone production / regulation is altered, so would connective tissue development.
- Muscle weakness, atrophy, myalgia (muscle pain), and fatigue that persist DESPITE REST is a s/s of early thyroid/parathyroid disease or diabetes.
- Carpal tunnel syndrome (median nerve impingment)
- Hand pain and stiffness
- Rheumatoid Arthritis is an indicator of underlying endocrine disease
- Excessive or delayed growth
T or F: hormones have a SLOWER effect (turning on and off) than neurotransmitter, but last longer
T or F: hormones may be localized in body, or system wide
T or F: hormones only target cells that have receptors for those hormones
The ____________ controls the function of endocrine organs by hormonal and neural pathways
Posterior pituitary gland releases 2 hormones (the rest are from anterior). What are those 2:
Tropic means: (how to remember)
ADH does what: (how to remember)
TRUE
True
True
Hypothalamus
2: Oxytocin and ADH (antidiuretic hormone … or vasopressin)
Tropic = stimulating (in tropics, you’ll get stimulated)
ADH: reabsorb water (water homeostasis) (remember: you take diuretics for CVD to flush excess fluid out to relieve pressure on heart. So anti-diuretic will help keep fluid in body). Water retention.
Describe each below for this condition with the endocrine glands:
Hyperpituitarism (it primarily results in what?)
Incidence:
Etiology:
Pathogenesis:
Clinical manifestations:
Medical Management:
About: oversecretion of one or more hormones produced by anterior lobe of pituitary gland … especially GH (resulting in acromegaly and giantism)
Incidence:
Etiology:
Pathogenesis:
Clinical manifestations:
Medical Management: Surgery or drug/medications to manage hormones
What are Primary and Secondary disorders of Endocrine glands:
Can glands be impacted iatrogenically
Primary: Dysfunction of the gland itself
Secondary: Dysfunction of an outside stimulus to the gland (other gland or cascade effects the downstream gland).
Iatrogenically: yes, from surgery
Name two OPPOSING conditions resulting in ANTERIOR pituitary gland disorder, and two conditions resulting in POSTERIOR pituitary gland disorder
ANTERIOR:
- Hyperpituitarism (oversecretion of GH leading to acromegaly and giantism)
- Hypopituitarism (decreased secretion of GH leading to dwarfism or Panhypopituitarism)
POSTERIOR:
- Diabetes Insipidus
- SIADH