CNS Exam II

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1

White adipocyte is for ____ ____.

lipid storage

2

Brown adipocytes and brite adipocytes are for _______.

thermogenesis

3

endocrine glands secrete in ______.

the blood

4

exocrine glands secrete out of _____.

ducts

5

Which part of the brain has connections to the hypothalamus and to the limbic lobe to allow cortical influence on ANS?

cerebral cortex

6

Which part of the brain is the master intrinsic control hub?

hypothalmus

7

Which part of the brainstem controls the pupils and lens?

midbrain

8

Which two parts of the brainstem control breathing, HR, and GI movements?

Pons and Medulla oblongata

9

Controls:

1. digestion

2. body temperature

3. circadian rhythm

4. feeding and reproduction

hypothalamus

10

Controls:

1. reflexes for urination

2. reflexes for defecation

3. reflexes of erection/ejaculation

Spinal cord

11

Which division of the nervous system is craniosacral?

Parasympathetic

12

Which division of the nervous system is thoracolumbar?

Sympathetic

13

Which fibers have long preganglionic fibers and short postganglionic fibers?

PNS

14

Which fibers have short preganglionic fibers and long postganglionic?

SNS

15

Location of Ganglia:

near the target organ

PNS

16

Location of the Ganglia:

sympathetic trunk

SNS

17

SSSLUDD

slow heart rate

sexual arousal

salivation

lacrimation

urination

digestion

defecation

18

PNS:

Eyes

Pupils contrict

19

PNS:

Salivary and lacrimal glands

mouth salivates; tears flow

20

PNS:

Heart

Heart rate slows

21

PNS:

lungs

bronchia constrict and mucus forms

22

PNS:

liver

glucose production inhibited;

increased glycogenesis;

increased glucose uptake from blood into the cells

23

PNS:

stomach and intestines

motility increases

24

PNS: pancreas

insulin secreted;

pancreatic juice released

25

PNS:

spleen

decrease cytokine release

26

PNS:

gallbladder

stimulates bile secretion

27

PNS:

bladder

bladder constricts;

urethra relaxes

28

PNS:

gentitals

vasodilation

29

The vagus nerve carries mostly ______ information.

sensory/afferent

30

What type of motor neurons provide PNS innervation to smooth muscles and glands?

visceral motor neurons

31

Which tissue targets are only found in the SNS? (5)

ASKAS

1. adipose tissue

2. sweat glands

3. kidney

4. adrenals

5. skin pili muscles

32

SNS preganglionic fibers release _____.

ACh

33

SNS postganlionic fibers release _____.

NE

34
card image

Pathways of sympathetic innervation:

Trunk: Same level

35
card image

Pathways of sympathetic innervation:

Trunk: different level

36
card image

Pathways of sympathetic innervation:

Collateral Ganglion

37

Preganglionic fibers pass through ______ rami communicantes and enter sympathetic trunk.

white

38

Postganglionic axons pass through _____ rami communicantes.

gray

39

Which target cells have a preganglionic fiber that synapses directly upon them and releases NE and E into the blood.

adrenal medullary cells

40

SNS:

eyes

pupils dilate

41

SNS:

skin

temperature rises; piloerection; emotional sweating

42

SNS:

adipose

lypolysis

43

SNS:

salivary and lacrimal glands

secretions inhibited

44

SNS:

blood vessels

vasoconstriction;

exception: skeletal muscles (vasodilation)

45

SNS: lungs

bronchia dilate and decrease mucus

46

SNS:

heart

increase rate (chronotropy)

increase force of contraction (ionotropy)

47

SNS: stomach intestines

contracts sphincters, decrease motility (relax smooth muscle)

48

SNS:

pancreas

increase glucagon release --> stimulates liver glycogenolysis --> incr. blood glucose levels

49

SNS: liver

glucose production and release stimulated;

decreased glycogenesis

decreased bile production

50

SNS:

gallbladder

reduced bile secretion

51

SNS:

adrenals/kidneys

epinephrine and norepinephrine released;

renin released

52

SNS:

spleen

context-dependent: release of cytokines

53

SNS: Bladder

bladder relaxes (holds more urine)

54

SNS:

genitals

orgasm

55

Control of Blood pressure and thermoregulation is predominantly due to ________ nervous system.

sympathetic

56

Heart rate, digestion, gladder and bronchial smooth muscle is generally under ______ nervous system control.

parasympathetic

57

Baroreceptors detect a sudden drop or rise in ______.

blood pressure

58

A sudden drop in blood pressure will ______ (activate/inhibit) baroreceptors.

inhibit

59

Describe release of renin from kidneys and the ending result.

EPI acts on beta1 receptors in kidneys causing release of renin, in turn will increase BP

60

The PNS innervates all glands except for ______ and ______ glands.

adrenal;

sweat

61

Neurotransmitter Control:

1. HR

2. Vascular tone

3. gastric motility

4. renin release

Dopamine

62

SNS response at sweat glands release ______ at the _____ receptor.

ACh;

M3

63

When stimulated, the end plate potential triggers an _____ ______.

action potential