Cardiovascular test part 2 Flashcards

1
Q

Olfactory glomeruli

A

cluster of ball like structures that smell
collection centers” where neurons for a specific odor molecule converge on mitral cells

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2
Q

flehming response

A

open nasal passageway so that pheromones can reach the VMO

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3
Q

What is the endocrine system?

A

A system of glands or tissues that secrete
hormones into the blood to regulate animal homeostasis and physiology
-has a slow rate of change compared to nervous system

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4
Q

Endocrinology

A

The study of endocrine glands, their secretion of hormones
into the blood and the effects of endocrine hormones on tissues

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5
Q

what did Arnold Berthhold’s research support?

A

That the endocrine system secrete hormones into the blood (can reach many parts of the body)

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6
Q

Compensatory hypertrophy

A

a increase in the size or an organ to compensate for the the lack of another

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7
Q

basal or tonic hormone secretion

A

constant low hormone secretion

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8
Q

sustained hormone secretion

A

constant high hormone secretion

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9
Q

episodic hormone secretion

A

secreting hormones in pulses, common for neuroendocrine hormones, related to the action potential to the neuron

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10
Q

negative feedback loop example

A

thyroid hormone acts as an inhibitor

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11
Q

Postive feedback loop example

A

Oxytocin acts as a stimulator and to smooth muscle contraction

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12
Q

the pituitary gland consits of two glands-

A

anterior and posterior pituitary

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13
Q

hypothalamic nuclei

A

Groups of nerve cell bodies that respond to specific sensory
information and release
neuroendocrine hormones into the
anterior or posterior pituitary

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14
Q

What does the posterior pituitary produce?

A

oxytocin and vasopressin

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15
Q

oxytoin does what

A

stimulates milk ejection and uterine contraction in females

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16
Q

vasopressin contributes to

A

water retention and regulates blood pressure

17
Q

Where does vasopressin go to?

A

Nephrons in the kidneys and/or arterioles throughout the blood

18
Q

where does oxytocin go to

A

uterus and mammary glands

19
Q

Ferguson reflex

A

Contraction of smooth muscle in uterus for parturition (birthing
process)

20
Q

Milk let-down reflex

A

Contraction of smooth muscle in mammary gland for milk ejection

21
Q

What does AVP binding to V2R do in kidney

A

increases aquaporin
activity

22
Q

central diabetes insipidus

A

damage to the pituitary gland affecting the storage and release of Vasopressin/ADH

23
Q

polydipsia

A

excessive drinking

24
Q

polyuria

A

excessive urination

25
Hypothalamic- Hypophyseal (HH)- Blood Portal System
Allows for small quantities of neuroendocrine hormones to act on cells in the anterior pituitary before they are diluted by the general circulation
26
In the Human anterior pituitary what do Acidophiles look like
(dark red) lactotropes or somatotropes
27
What do the Basophiles look like in the anterior pituaitary under a microscope
light pink; gonadotropes or thyrotropes
28
Chromophobes (little to no stain) are called
corticotropes
29
Trope cells of anterior pituitary secrete what
anterior pituitary hormones into general blood circulation
30
neurons in the hypothamumus secret
releasing and inhibiting neuroendocrine hormones
31
lactrotrophe cells produce what
porlactin (PRL)
32
What chemical reguates the prolactin realease
dopomine
33
What does porlactin simulate
mammary gland growth and production of milk factors
34
Prolactinoma
Most common type of pituitary tumor. Causes hyperprolactinemia or excessive prolactin secretion
35
Hyperprolactinemia
can cause infertility in females and males and it can lead to erectile dysfunction and low libido.
36
Galactorrhea
abnormal mammary secretions. Can occur in males
37
What happens when vasopressin enters the kidneys
increases water permeability of distal and collecting tublues
38
What happens when vassopressin goes to arterioles
causes vasoconstriction;the narrowing and constriction of the blood vessels
39