Anatomy & Physiology Flashcards

1
Q

Action potentials are generated by the opening of___gated channels and occur on the____

A

voltage-gated
axon

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2
Q

A nerve impusle travels fasted along____axons of _______diameter

A

-Myelinated
-large (because of surface area)

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3
Q

Myelinated

A

is important for speed

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4
Q

You are in the dark room and someone comes in and turns on all the lights. Pupils get smaller. This is an example of what nervous system?

A

Autonomic - Everything that we don’t really have control over

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5
Q

Cerebral Spinal Fluid

A

the liquid that nourishes the brain and spinal cord.
-helps reduce the effective weight of the brain
provides a liquid cushion to protect the brain from sudden movements

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6
Q

Which is not a function of CSF

A
  • CSF helps to promote mitosis within the neural tissue
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7
Q

THe brain stem

A

Medulla oblongata- heart rate
Pons- relays nerve impulses from cerebrum to crebellum
Midbrain- Motor and sensory impulse (to move you hand from stove. Up and down spinal cord

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8
Q

coordination

A

diencephlon

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9
Q

Hypothalamus

A

Hormones

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10
Q

Epithalmus

A

pineal gland secreted melatonin

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11
Q

Protection of the brain

A

cranial bone
menegies 3 layers, know inner outer
CSF

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12
Q

Olfactory 1

A

smell

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13
Q

Optic 3

A

vision/sight

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14
Q

Ocuulomotor

A

Movement of eyeballs and upper eye lid

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15
Q

Simple squamous Epithelium

A

simple diffusion and filtration.
Single laye of flat cells

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16
Q

Cilia

A

Hairs that beat.
As result of beating helps you to cough.
Beat when exposed to something

17
Q

Endocrine

A

direct diffusion of hormones into bloodstream

18
Q

Exocrine

A

will go to the surface of our lining. have ducts

19
Q

sebaceous glands

A

sweat glands.
Ecrine- found everywhere
adocrine- everywhere else, groin, armpits, sexual regions

20
Q

Sebum

A

lubricates skin and helps fight bacteria

21
Q

osteroblast

A

building bone

22
Q

Osteoclast

A

remodelling or breaking down

23
Q

Osteocystes

A

mature bone cell

24
Q

Osteiod

A

bone cells waiting to become bone

25
Rise in calcium levels
Thyroid gland produces calcitonin and it is deposited into bone
26
Calcium levels drop
The thyroid gland goes to the parathyroid glands to secrete PTH and then we perform osteoclasts and get homeostasis