Nervous System (general)
Which of these monitor the position and movement of torso, head, and limbs?
a. Exteroceptors
b. Visceroceptors
c. Proprioceptors
d. Somatic effectors
c. Proprioceptors
Important centers for heart rate, blood pressure, respiration, swallowing, coughing and vomiting are located in the:
a) cerebrum
b) medulla oblongata
c) midbrain
d) pons
e) cerebellum
b) medulla oblongata
Polysynaptic reflexes involve more complex pathways that involve multiple synapses with ___________ between the sensory and motor neurons.
A) spinal nerves
B) dorsal root ganglion
C) interneurons
D) effectors.
C) interneurons
Question: To which of the following does ATP bind?
a. Actin molecules
b. Myosin heads
c. Troponin
d. Tropomyosin
b. Myosin heads
What ion triggers the movement of troponin to expose actin’s active site?
a. Sodium
b. Chloride
c. Calcium
d. Potassium
c. Calcium
At which voltage (mV) would an action potential result?
~ -55 mV
Which of the following is a function of the hypothalamus?
a) regulates autonomic nervous system functions
b) regulates the release of hormones from the posterior pituitary gland
c) regulates body temperature
d) regulates food intake and water intake
e) All of these are correct.
e) All of these are correct.
What is present within the dorsal root ganglion, giving it a swollen appearance?
a.Cell bodies
b.Cerebrospinal fluid
c.Additional myelin
d.Multiple layers of connective tissue
a) Cell bodies
The nuchal is __________ to the lumbar.
a) anterior
b) posterior
c) superior
d) inferior
e) proximal
c) superior
Which of these reduces friction between bones?
a. Nutrient vessels of bone
b. Meniscus
c. Synovial fluid
d. Ligaments
c. Synovial fluid
Which of these are specific effects of the parasympathetic nervous system?
Increased secretion of sweat glands
Constriction of blood vessels to the heart
Increased digestive activity
Pupil constriction
Increased urine production
Decreased heart rate
Dilation of respiratory passages
Increased digestive activity, pupil constriction, increased urine production, decreased heart rate
This part of the brain is involved in personality and decision-making.
A) postcentral gyrus
B) amygdala
C) hippocampus
D) hypothalamus
E) prefrontal cortex
E) prefrontal cortex
Axons of sensory neurons synapse wit the cell bodies of interneurons in the _________ of spinal cord gray matter.
a) ventral horn
b) lateral horn
c) dorsal horn
d) gray commissure
e) lateral columns
c) dorsal horn
The type of muscle contraction in which the muscle fibers do not shorten is called
A) Concentric
B) Isotonic
C) Tetany
D) Treppe
E) Isometric
E) Isometric
The frontal bone is part of the ________ skeleton, and it is created from ___________ossification.
a) axial, endochondral
b) appendicular, intramembranous
c) axial, intramembranous
d) appendicular, endochondral
c) axial, intramembranous
Match the following glial cells to their function.
1) Oligodendrites
2) Microglia
3) Schwann Cells
4) Ependymal Cells
5) Satellite Cells
A) Forms a myelin sheath around part of the axon of a PNS neuron
B) Forms myelin sheaths around the axons of several CNS neurons
C) Phagocytize microorganisms, foreign substances, and necrotic tissue
D) Support and nourish neuron cell bodies within ganglia
E) Line ventricles and central canal of the spinal cord.
1) Oligodendrite: B) Forms myelin sheaths around the axons of several CNS neurons
2) Microglia: C) Phagocytize microorganisms, foreign substances, and necrotic tissue
3) Schwann Cell: A)Forms a myelin sheath around part of the axon of a PNS neuron
4) Ependymal cells: E) Line ventricles and central canal of the spinal cord.
5) Satellite Cell: D) Support and nourishes neuron cell bodies within ganglia
Identify the functions of the oculomotor nerve. Select all that apply.
Transmits cutaneous skin sensation around the eye
Regulates the shape of the eye
Transmits visual sensations
Controls many of the muscles that move the eyeball
Dilates the pupils
Regulates the shape of the eye, controls many of the muscles that move the eyeball, dilates pupils
Question: Where are visceral nuclei located within the spinal cord?
a. Lateral white columns
b. Lateral gray horns
c. Ventral gray horns
d. Dorsal root ganglion
b. Lateral gray horns
The joint between the vertebrae is a ______________
A) Synostosis
B) Symphysis
C) Syndesmosis
D) Gomphosis
E) Synchondrosis
B) Symphysis
When blood calcium levels increase you would release which hormone?
a. Calcitonin
b. Parathyroid hormone
c. Growth hormone
d. Thyroid hormone
a. Calcitonin
If a stimulus created a membrane potential of –40 mV during the absolute refractory period, then...
a) a second action potential would begin
b) a series of action potentials would begin
c) the action potential would end normally
d) sodium inactivation gates would open
c) the action potential would end normally
Damage to the vestibulocochlear nerve will have an affect on the ability to:
a) move her jaw
b) open her eyes
c) hear and keep her balance
d) maneuver her tongue
c) hear and keep her balance
What is the spinal nerve that is above lumbar vertebra 2?
a) Spinal nerve L2
b) Spinal Nerve L1
b) Spinal Nerve L1
The last layer in the epidermis that includes live cells.
A) Stratum spinosum
B) Stratum lucidum
C) Stratum granulosum
D) Stratum basale
C) Stratum granulosum.
Which neurotransmitter is released by all neurons of the parasympathetic division of the ANS?
a.norepinephrine
b.epinephrine
c.acetylcholine
d.monoamine oxidase
c.acetylcholine