Lecture Exam 4 - Chapter 14-16 Flashcards Preview

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Flashcards in Lecture Exam 4 - Chapter 14-16 Deck (102)
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1

Effectors –

_________ : stimulates skeletal muscle

somatic system

2

Effectors –

_________ : stimulates cardiac and smooth muscle and glands

autonomic

3

-Efferent pathways and ganglia-

_________ – one neuron where cell bodies are in the CNS and axons travel to the muscle
-Most fibers are thick and myelinated

Somatic

4

-Efferent pathways and ganglia-

_________ -Most fibers are thick and myelinated

Somatic

5

-Efferent pathways and ganglia-

_________ – two neurons; 1st cell body is in the CNS and
its axon (preganglionic) connects with the 2nd neuron in an autonomic ganglion outside the CNS.

Autonomic

6

-Efferent pathways and ganglia-

Autonomic – two neurons; 1st cell body is in the ___ and
its axon (preganglionic) connects with the ___ neuron in an autonomic ganglion outside the CNS.

-CNS
-2nd

7

-Efferent pathways and ganglia-

_________ - The 2nd axon (postganglionic) then travels to the effector

-Most fibers are thin and either lightly myelinated or are unmyelinated

-Transmission is much slower than in the somatic

Autonomic

8

-Efferent pathways and ganglia-

Autonomic - The 2nd axon (postganglionic) then travels to the _________

-Most fibers are _________ and either lightly myelinated or are unmyelinated

-Transmission is much _________ than in the somatic

-effector
-thin
-slower

9

exercising muscles (stimulated by _________ system) demand more oxygen, so ___ increases heart rate and breathing rate

-somatic
-ANS

10

Four cranial nerves are involved with the Parasympathetic system:

_________ – innervates smooth muscles in the eye that allow for focusing on close objects

Oculomotor

11

Four cranial nerves are involved with the Parasympathetic system:

_________ – innervates the glands of the head – lacrimal, submandibular and sublingual (tears and saliva)

Facial

12

Four cranial nerves are involved with the Parasympathetic system:

_________ – innervates the parotid gland

Glossopharyngeal

13

Four cranial nerves are involved with the Parasympathetic system:

_________ – innervates most of the organs of the thorax and abdomen

Vagus

14

- Pathway of a _________ -

-Leaves spinal cord through the ventral root, travels in the white rams communicans
-From the WRC, fibers join with a ganglion that is part of the sympathetic trunk
-synapse is made in the ST
-the postganglionic axon joins
with the spinal nerves via the gray ramus communicans
-WRC connects the preganglionic fibers to the ST; GRC connects the ST to the spinal nerves
-viii. Postganglionic axons then travel on to visceral
effectors (heart, lungs, liver, etc. (page 536)
-Pelvic splanchnic nerves innervate colon, ureters, bladder, and reproductive organs

sympathetic neuron

15

- Pathway of a sympathetic neuron -

-Leaves spinal cord through the _________, travels in the white rams communicans
-From the WRC, fibers join with a _________ that is part of the _________ trunk
-synapse is made in the ST
-the postganglionic axon joins
with the spinal nerves via the gray ramus communicans
-WRC connects the preganglionic fibers to the ST; GRC connects the ST to the spinal nerves
-viii. Postganglionic axons then travel on to visceral
effectors (heart, lungs, liver, etc. (page 536)
-Pelvic splanchnic nerves innervate colon, ureters, bladder, and reproductive organs

-ventral root
-ganglion
-sympathetic

16

- Pathway of a sympathetic neuron -

-Leaves spinal cord through the ventral root, travels in the white rams communicans
-From the WRC, fibers join with a ganglion that is part of the sympathetic trunk
- _________ is made in the ST
-the postganglionic axon joins
with the spinal nerves via the _________ ramus communicans
-WRC connects the _________ fibers to the ST; GRC connects the ST to the spinal nerves
-Postganglionic axons then travel on to visceral
effectors (heart, lungs, liver, etc.
-Pelvic splanchnic nerves innervate colon, ureters, bladder, and reproductive organs

-synapse
-gray
-preganglionic

17

- Pathway of a sympathetic neuron -

-Leaves spinal cord through the ventral root, travels in the white rams communicans
-From the WRC, fibers join with a ganglion that is part of the sympathetic trunk
-synapse is made in the ST
-the postganglionic axon joins
with the spinal nerves via the gray ramus communicans
-WRC connects the preganglionic fibers to the ST; GRC connects the ST to the _________ nerves
-Postganglionic axons then travel on to _________
effectors (heart, lungs, liver, etc.
-Pelvic splanchnic nerves innervate _________, ureters, bladder, and reproductive organs

-spinal
-visceral
-colon

18

The brain stem has a lot of influence over the ANS, mostly through _________

-reflexes

19

Heart beat, _________, GI activity and _________ are controlled in the brain stem

-respiration
-pupil dilation

20

Elimination is controlled in the _________

spinal cord

21

Hypothalamus – coordinates _________ activity, respiration, _________ , and blood pressure

-heart
-body temp

22

_________ : coordinates emotions and biological drives and controls our reaction to fear

Hypothalamus

23

_________ – physical response to an emotion or thought
– heart races when remembering being frightened

Cerebral cortex

24

_________ may be caused by excessive sympathetic vasoconstriction

Hypertension

25

- 3 types of taste buds -

_________ papillae – found all over the surface of the tongue

Fungiform

26

- 3 types of taste buds -

_________ papillae – very large, form a V on the back of the tongue

Circumvallate

27

- 3 types of taste buds -

_________ papillae – side of the tongue

Foliate

28

-3 types of cells found within a taste bud-

_________ cells – provide insulation (stratified squamous epithelium)

Supporting

29

-3 types of cells found within a taste bud-

_________ cells – have gustatory hairs that project up through a taste pore to the surface
-Hairs are the sensory receptors for taste
-Exposed to a lot of friction – are replaced every 7-10 days

Gustatory (taste)

30

-3 types of cells found within a taste bud-

_________ cells – stem cells that give rise to new taste cells

Basal