Mastering A&p: Assignment 10

Front 1

What are the effectors of the autonomic nervous system pathway?

Back 1

1. Smooth Muscle
2. Glands
3. Cardiac Muscle
4. Adipocytes

Front 2

Where can you find the cell bodies of the ganglionic neurons?

Back 2

autonomic ganglia

Front 3

Where is the integrative center for autonomic activity located?

Back 3

hypothalamus

Front 4

What is the effector of the somatic nervous system pathway?

Back 4

skeletal muscle

Front 5

Where are the cell bodies of the upper motor neurons located?

Back 5

in the primary motor cortex of the cerebrum

Front 6

How many neurons comprise the somatic nervous system pathway?

Back 6

two

Front 7

What neuron runs from the CNS to the autonomic ganglion?

Back 7

Preganglionic neuron

(Autonomic preganglionic neurons are located between brain or spinal cord and some autonomic ganglion.)

Front 8

Which spinal region LACKS autonomic preganglionic neurons?

Back 8

cervical

Front 9

The statement "there is always a peripheral synapse between the CNS and the effector organ" is __________.

Back 9

true for both the parasympathetic and the sympathetic nervous systems

Front 10

Sympathetic innervation originates in the thoracic and upper lumbar regions of the spinal cord. What part of the autonomic nervous system is represented by this statement?

Back 10

Sympathetic Divison

Front 11

Which of the following effectors is supplied by neurons that synapse in the collateral ganglia?

A) Adrenal Medulla
B) Intestine
C) Heart
D) Salivary Gland

Back 11

Intestine

(Abdominopelvic organs, except the adrenal medulla, are supplied with neurons that synapse in the collateral ganglia.)

Front 12

_________________, except the adrenal medulla, is/are supplied with neurons that synapse in the collateral ganglia.

Back 12

Abdominopelvic organs

Front 13

Which of the following is NOT supplied by cervical sympathetic chain ganglia?

A) Spleen
B) Salivary Glands
C) Skin of the HEad
D) Heart

Back 13

Spleen

(The spleen is in the abdominal cavity, which is supplied by thoracic sympathetic chain ganglia.)

Front 14

Sympathetic ganglionic neurons are found is all of these locations EXCEPT:

A) Collateral ganglia
B) Chain ganglia
C) Intramural ganglia
D) Suprarenal medullae

Back 14

intramural ganglia

Front 15

Sympathetic preganglionic neurons are located in the __________ horn of the __________ cord.

Back 15

lateral; thoracolumbar

Front 16

Which response is not part of sympathetic activation?

A) decreased muscle tone
B) decreased sensitivity to painful stimuli
C) increased heart rate
D) increased alertness

Back 16

decreased muscle tone

Front 17

In what part of the given pathway is norepinephrine secreted?

Back 17

from the varicosities of the postganglionic fiber?

(Varicosities are the synaptic terminals of the adrenergic, postsynaptic neurons.)

Front 18

Which of these neurotransmitters is NOT released at sympathetic neuroeffector junctions?

A) epinephrine
B) acetylcholine
C) nitric oxide
D) norepinephrine

Back 18

epinephrine

Front 19

Which of these is not an action of the sympathetic nervous system?

A) to constrict the pupils
B) to reduce skin circulation
C) to increase heart rate
D) to increase sweating

Back 19

to constrict the pupils

Front 20

Which of these substances is not a neurotransmitter at a sympathetic effector synapse?

A) gamma amino butyric acid (GABA)
B) norepinephrine
C) acetylcholine (ACh)
D) epinephrine

Back 20

gamma amino butyric acid (GABA)

Front 21

Which of the following target organs will have its parasympathetic regulation impacted by damage to the sacral region of the spinal cord?

A) Urinary Bladder
B) Stomach
C) Heart
D) Salivary glands

Back 21

urinary bladder

(Pelvic organs are supplied by pelvic nerves arising from the sacral region of the spinal cord)

Front 22

Where are the parasympathetic ganglionic synapses for the heart located?

Back 22

within the heart itself

(The heart, along with many other effectors, has terminal ganglia within itself, rather than a separate ganglion.)

Front 23

Parasympathetic outflow is ABSENT in which of these?

A) pelvic nerves
B) cervical ganglia
C) cranial nerve X
D) cranial nerve III

Back 23

cervical ganglia

Front 24

Which nerves contain the most parasympathetic preganglionic fibers?

Back 24

vagus nerve

Front 25

The parasympathetic nervous system releases __________ at ganglionic synapses, and _________ at its neuroeffector junctions.

Back 25

acetylcholine; acetylcholine

Front 26

Nicotine, the highly addictive plant toxin, activates nicotinic receptors in the peripheral nervous system. This means it will __________.

Back 26

facilitate synaptic transmission at all autonomic ganglionic synapses

Front 27

Which of these organs do NOT receive parasympathetic input?

A) lungs
B) heart
C) skin
D) stomach

Back 27

skin

Front 28

At which of the following synapses is epinephrine secreted?

A) All parasympathetic ganglia
B) Terminal ganglia at parasympathetic synapses
C) Post-ganglionic neurons within sympathetic ganglia
of the adrenal medulla
D) All sympathetic ganglia

Back 28

Postganglionic neurons within sympathetic ganglia of the adrenal medulla

(Only the postganglionic neurons of the adrenal medulla secrete epinephrine.)

Front 29

Which of these is NOT a similarity between the parasympathetic and sympathetic nervous systems?

A) Both use norepinephrine
B) Both affect heart rate
C) Both use acetylcholine
D) Both affect the pupils

Back 29

Both use norepinephrine

Front 30

The statement "it controls heart rate" is true ________________.

Back 30

for both the parasympathetic and the sympathetic nervous system

Front 31

Which of these organs do NOT receive dual innervation?

A) salivary gland
B) sweat glands
C) heart
D) eye

Back 31

sweat glands