FINAL Flashcards

1
Q

growth and stimulation is stimulated by what hormones

A

erythropoietin - KIDNEY
thrombopoietin - liver
cytokines - bone marrow

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2
Q

what is the major histocompatibility agent

A

specialized protein in plasma membrane

cell identity markers

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3
Q

process of hemostasis

A

vascular spasm
platelet plug formation
blood clotting

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3
Q

how does capillary exchange work

A

diffusion
transcytosis
bulk flow

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3
Q

what is vascular resistance

A

the opposition of blood flow due to friction created between blood and the vessel walls

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4
Q

what does RAAS do

A

stimulate vasoconstriction, stimulate aldosterone secretion is reabsorbed and then increase in blood volume and blood pressure

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5
Q

basic definition of shock

A

failure of cardiovascular system to deliver enough O2 and nutrients

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6
Q

the two branches that come off coronary artery

A

anterior descending branch and circumflex branch

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7
Q

where does the hepatic portal vein take nutrient rich blood from the GI tract and shunts it to where?

A

liver

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8
Q

3 steps to capillary exchange

A

diffusion
transcytosis
bulk flow

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9
Q

innermost layer of all blood vessels is called ?

A

endothelium

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10
Q

which WBC are granular

A

neutrophils
basophils
eosinophils

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11
Q

what granular WBCS destroy bacteria and are the most common

A

neutrophils

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12
Q

which WBC release histamine &serotonin that intensify an inflammatory reaction

A

basophils

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13
Q

which WBC combat against worms and release histaminase to combat histamine in an allergic reaction

A

eosinophils

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14
Q

what is blood plasma made of

A

water, solutes

(proteins, electrolytes, gases, waste products)

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15
Q

hemostasis - 3 steps that stop bleeding

A

vascular spasm
platelet plug formation
blood clotting

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16
Q

if blood type A, what type antibody

A

B

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17
Q

if type O what type anitbodies

A

no antibodies
AB antigens

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18
Q

describe capillaries in bone marrow

A

sinusoids
large pores, partial basement membrane
intercellular clefts
RBCs can fit through
found in red bone marrow
leaky walls

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19
Q

what do satellite cells do

A

surround cell body in the PNS
provide structural support

20
Q

what is the type of conduction in unmyelinated axons

A

continuous conduction

21
Q

what helps control BP? question on test

A

answer is NOT PULMONARY

22
Q

stages of deep wound healing

A

inflammatory
migratory
proliferation
maturation

23
how does slow axonal transport work
speed is 1-5mm per day carry materials from cell body to axon ONE DIRECTION ONLY
24
what are the functional types of neurons and what do they do
sensory (afferent) - ascending, action potentials INTO motor (efferent) - - descending - AWAY interneuron (association) - one process - sensory for touch ext
25
what are the structural classifications of neurons
multipolar - several dendrites bipolar - one main dendrite unipolar - dendrite and axon fused together
26
what is myelin
multilayered lipid and protein that covers axons increases speed of action potentials
27
what is bone tissue made of
extracellular matrix 15% water 30% collagen fibres 55% crystalized mineral salts most abundant is calcium phosphate
28
what is the skeletal tissue made of
bone tissue & cartilage
29
what are fats oxidative - glycolytic muscle fibres
medium, dark red lots of myoglobin rich blood supply moderate fatigue resistant (walking, sprinting)
30
where action potentials arise
transverse tubules terminal cistern
31
what is a neuromuscular junction
where a somatic nerve comes in contact with a muscle propagates nerve impulses towards both end of muscle fibre
32
what is the epidermis made of
epithelial tissue keratinized stratified squamous epithelium
33
basale spinosum granulosum lucidum corneum
BSGLC
34
what is the dermis made of
dense irregular connective tissue that contains collagen, elastic fibres has blood vessels, nerves, glands, hair follicles temp stability prevents dehydration
35
what is the hypodermis made of
loose areolar CT and adipose tissue contains pressure sensitive nerve endings
36
sudoriferous are
sweat glands
37
where can u find ligand gated channels & what do they do
resting membrane potential chemicals like neurotransmitters or hormones stimulate channels to open
38
whats the innermost layer of a blood vessel called
tunica interna - touches lumen
39
how neurotransmitters are removed from the synaptic cleft
diffusion enzymatic degration re uptake by cells
40
what happens in the neuromuscular junction to create an action potential to create a muscle contraction
1) release of acetylcholine (Ca2+ flows into motor neuron) 2) activates acetylcholine receptors (Na+ enters muscle fibre) 3) produces an action potential (increase in Ca2+ starts contraction cycle) 4) acetylcholine actvity stops
41
what does vascular resistance depend on
diameter of blood vessel lumen blood viscosity blood vessel length
42
what helps venous return
skeletal muscle pump respiratory pump
43
what helps control blood pressure
autoregulation physical changes chemical changes
44
what neuron has one main dendrite & one main neuron
bi polar
45
what is the endoplasmic reticulum called in a neuron
nissl bodies
46
what 2 pressures promote filtration
blood hydrostatic pressure interstitial fluid osmotic pressure
47
what 2 pressures promote reabsorption
blood colloid osmotic pressure interstitial fluid hydrostatic pressure
48