Autonomic Nervous System Week 10
Questions and Answers Rated A+
How are the two cerebral hemispheres related to body control? - ANSWER--Right
hemisphere: controls and receives input from the left side of the body
-Left hemisphere: controls and receives input from the right side of the body
How are white matter and gray matter arranged in the spinal cord? - ANSWER--White
matter: outside, afferent and efferent fibers
-Gray matter: inside, neuron cell bodies arranged in horns
How can special sensory fibers influence the somatic and autonomic nervous systems?
- ANSWER--Somatic: turn head toward sound
-Autonomic: salivation in response to food smell
How do the parasympathetic and sympathetic systems affect the enteric nervous
system? - ANSWER--Parasympathetic: stimulates digestive activity
-Sympathetic: inhibits digestive activity
How do the Sympathetic and Parasympathetic Nervous Systems interact? - ANSWER--
Maintain antagonistic balance
-Sympathetic: increases heart rate
-Parasympathetic: decreases heart rate
How do the sympathetic and parasympathetic systems balance each other? -
ANSWER--Act in opposition to maintain homeostasis
-Work like a seesaw
How does the sympathetic nervous system affect blood vessels? - ANSWER--Alpha-1:
vasoconstriction in gastrointestinal tract and bladder
-Beta-2: vasodilation in skeletal muscle and brain
How does the sympathetic nervous system affect the heart? - ANSWER--Alpha-1 and
beta-1 receptors
-Increase heart rate
-Increase contractility
How does the Sympathetic Nervous System affect the kidney? - ANSWER--Activates
beta-1 receptors in juxtaglomerular cells
-↑ renin release → activates renin-angiotensin-aldosterone system
How does the sympathetic nervous system affect the lungs? - ANSWER--Beta-2
receptors
-Cause bronchodilation
, -Increase oxygen delivery
How does the Sympathetic Nervous System affect the respiratory system? - ANSWER--
Stimulates beta-2 receptors in bronchioles
-Beta-2 receptor activation
-Causes bronchodilation
-Increases airflow
How does the Sympathetic Nervous System increase cardiac output? - ANSWER--
Beta-1 receptor activation
-Increases heart rate
-Increases contractility
-Increases conduction velocity
How does the Sympathetic Nervous System regulate blood pressure? - ANSWER--
Stimulates alpha-1 receptors in arterioles and veins
-Alpha-1 receptor activation
-Vasoconstriction of arterioles and veins
-Increases resistance
-Increases venous return
How does the temporal lobe relate to the hippocampus? - ANSWER--Temporal lobe
surrounds and communicates with hippocampus
-Transfers information from short-term memory to long-term memory
How many cranial nerves are there and where do they arise? - ANSWER-12 pairs
I and II: cerebrum
III and IV: midbrain
V-VIII: pons
IX-XII: medulla
How many spinal nerves are there and how are they distributed? - ANSWER-31 pairs
total
8 cervical
12 thoracic
5 lumbar
5 sacral
1 coccygeal
Voluntary skeletal muscle contraction - ANSWER--Involuntary functions
-Smooth muscle
-Cardiac muscle
-Glandular tissue
What are dendrites and axons in a neuron? - ANSWER--Dendrites: receive signals
-Axons: send signals
Questions and Answers Rated A+
How are the two cerebral hemispheres related to body control? - ANSWER--Right
hemisphere: controls and receives input from the left side of the body
-Left hemisphere: controls and receives input from the right side of the body
How are white matter and gray matter arranged in the spinal cord? - ANSWER--White
matter: outside, afferent and efferent fibers
-Gray matter: inside, neuron cell bodies arranged in horns
How can special sensory fibers influence the somatic and autonomic nervous systems?
- ANSWER--Somatic: turn head toward sound
-Autonomic: salivation in response to food smell
How do the parasympathetic and sympathetic systems affect the enteric nervous
system? - ANSWER--Parasympathetic: stimulates digestive activity
-Sympathetic: inhibits digestive activity
How do the Sympathetic and Parasympathetic Nervous Systems interact? - ANSWER--
Maintain antagonistic balance
-Sympathetic: increases heart rate
-Parasympathetic: decreases heart rate
How do the sympathetic and parasympathetic systems balance each other? -
ANSWER--Act in opposition to maintain homeostasis
-Work like a seesaw
How does the sympathetic nervous system affect blood vessels? - ANSWER--Alpha-1:
vasoconstriction in gastrointestinal tract and bladder
-Beta-2: vasodilation in skeletal muscle and brain
How does the sympathetic nervous system affect the heart? - ANSWER--Alpha-1 and
beta-1 receptors
-Increase heart rate
-Increase contractility
How does the Sympathetic Nervous System affect the kidney? - ANSWER--Activates
beta-1 receptors in juxtaglomerular cells
-↑ renin release → activates renin-angiotensin-aldosterone system
How does the sympathetic nervous system affect the lungs? - ANSWER--Beta-2
receptors
-Cause bronchodilation
, -Increase oxygen delivery
How does the Sympathetic Nervous System affect the respiratory system? - ANSWER--
Stimulates beta-2 receptors in bronchioles
-Beta-2 receptor activation
-Causes bronchodilation
-Increases airflow
How does the Sympathetic Nervous System increase cardiac output? - ANSWER--
Beta-1 receptor activation
-Increases heart rate
-Increases contractility
-Increases conduction velocity
How does the Sympathetic Nervous System regulate blood pressure? - ANSWER--
Stimulates alpha-1 receptors in arterioles and veins
-Alpha-1 receptor activation
-Vasoconstriction of arterioles and veins
-Increases resistance
-Increases venous return
How does the temporal lobe relate to the hippocampus? - ANSWER--Temporal lobe
surrounds and communicates with hippocampus
-Transfers information from short-term memory to long-term memory
How many cranial nerves are there and where do they arise? - ANSWER-12 pairs
I and II: cerebrum
III and IV: midbrain
V-VIII: pons
IX-XII: medulla
How many spinal nerves are there and how are they distributed? - ANSWER-31 pairs
total
8 cervical
12 thoracic
5 lumbar
5 sacral
1 coccygeal
Voluntary skeletal muscle contraction - ANSWER--Involuntary functions
-Smooth muscle
-Cardiac muscle
-Glandular tissue
What are dendrites and axons in a neuron? - ANSWER--Dendrites: receive signals
-Axons: send signals
