APHYS Test 3 Review|Complete Questions with
A+ Graded Answers
dorsiflexion.
What is the less movable end of a skeletal muscle?
Origin
What are the large bundles that skeletal muscles are organized into?
Fascicles
What are characteristics of smooth muscle?
Non-striated, involuntary, walls of hollow organs, has one nucleus
What are charateristics of skeletal muscle?
Striated, voluntary, all over body (attached to bones), multinucleated
What is the A-Band of a sacromere?
Dark section of a sacromere, composed of thick myosin and thin actin filaments. Medial to the I band.
What is the I-Band of a sacromere?
Lighter section of a sacromere, has thin actin filaments, lateral to A band.
What is the functional unit of a muscle?
Sacromere
What is the outermost connective tissue surrounding the muscle?
Epimysium.
What are myofibrils primarily composed of?
Thin actin filaments and thick myosin filaments.
Where is the soleus?
Deep, lateral, posterior calf muscle
What is the muscle that opposes any particular muscular action?
Antagonist.
What cytoplasmic extensions are the main receptors of a cell body?
Dendrites
What are neurons that conduct impulses from the CNS to muscles?
Motor/efferent neurons
, What are masses of myelinated axons?
White matter
What are most neurons in the brain and spinal cord?
Multipolar
Which cell is found only in the PNS
Schwann Cells
What does transmitting an impulse from one neuron to another neuron involve?
Impulse stimulating presynaptic dendrites is going to release the neurotransmitter into the synaptic
cleft.
What is the fastest way of conducting impulses?
Saltatory Conduction
The most rapid conduction on an impulse is on an axon that is:
Thick and myelinated
What happens in diverging neurons?
Neurons amplify an impulse by contacting multiple neurons
What is Multiple Sclerosis?
An immune response that affects the myelin coating on axons in brain and spinal cord, which triggers
inflammation and leaves scars.
What are the three meninges?
Dura, Arachnoid, and Pia Maters
Which meninge is the thinnest and contains nerves?
Pia Mater
How is cerebrospinal fluid made
It is secreted by the choroid plexus
Where is the choroid plexus located?
In the lateral ventricles.
What is a major portion of the diencephalon through which all incoming impulses pass?
Thalamus
What is the motor speech area?
A+ Graded Answers
dorsiflexion.
What is the less movable end of a skeletal muscle?
Origin
What are the large bundles that skeletal muscles are organized into?
Fascicles
What are characteristics of smooth muscle?
Non-striated, involuntary, walls of hollow organs, has one nucleus
What are charateristics of skeletal muscle?
Striated, voluntary, all over body (attached to bones), multinucleated
What is the A-Band of a sacromere?
Dark section of a sacromere, composed of thick myosin and thin actin filaments. Medial to the I band.
What is the I-Band of a sacromere?
Lighter section of a sacromere, has thin actin filaments, lateral to A band.
What is the functional unit of a muscle?
Sacromere
What is the outermost connective tissue surrounding the muscle?
Epimysium.
What are myofibrils primarily composed of?
Thin actin filaments and thick myosin filaments.
Where is the soleus?
Deep, lateral, posterior calf muscle
What is the muscle that opposes any particular muscular action?
Antagonist.
What cytoplasmic extensions are the main receptors of a cell body?
Dendrites
What are neurons that conduct impulses from the CNS to muscles?
Motor/efferent neurons
, What are masses of myelinated axons?
White matter
What are most neurons in the brain and spinal cord?
Multipolar
Which cell is found only in the PNS
Schwann Cells
What does transmitting an impulse from one neuron to another neuron involve?
Impulse stimulating presynaptic dendrites is going to release the neurotransmitter into the synaptic
cleft.
What is the fastest way of conducting impulses?
Saltatory Conduction
The most rapid conduction on an impulse is on an axon that is:
Thick and myelinated
What happens in diverging neurons?
Neurons amplify an impulse by contacting multiple neurons
What is Multiple Sclerosis?
An immune response that affects the myelin coating on axons in brain and spinal cord, which triggers
inflammation and leaves scars.
What are the three meninges?
Dura, Arachnoid, and Pia Maters
Which meninge is the thinnest and contains nerves?
Pia Mater
How is cerebrospinal fluid made
It is secreted by the choroid plexus
Where is the choroid plexus located?
In the lateral ventricles.
What is a major portion of the diencephalon through which all incoming impulses pass?
Thalamus
What is the motor speech area?
