BIO 201 FINAL EXAM AZ COLLEGE | 2026/2027 BIOLOGY
STUDY GUIDE | PRACTICE QUESTIONS & ANSWERS
1. The function of the ventricles in the brain is to:
Process sensory information
Store and circulate cerebrospinal fluid
Initiate voluntary movements
Produce neurotransmitters
2. Which of the following is/are considered function(s) of skeletal muscle?
All of the listed responses are correct.
Maintain body temperature
Maintain posture and body position
Produce skeletal movement
3. What is a characteristic feature of diathrosis joints?
They are immovable.
They are slightly movable.
They are freely movable.
They are found only in the skull.
4. Describe the primary roles of neuroglia in the nervous system.
Neuroglia transmit nerve impulses and form synapses.
Neuroglia are responsible for the production of neurotransmitters.
, Neuroglia support and protect neurons, maintain homeostasis, and
assist in the circulation of cerebrospinal fluid.
Neuroglia are the main cells involved in muscle contraction.
5. If a patient has a condition that impairs the secretion of cerebrospinal fluid by
Neuroglia, what potential symptoms might they experience?
Increased intracranial pressure and neurological deficits
Improved circulation and reduced inflammation
Enhanced reflexes and improved cognitive function
Decreased muscle tone and increased joint flexibility
6. What are the four main classifications of joints in the human body?
cartilaginous, synovial, movable, immovable
fibrous, synovial, flexible, rigid
bony, cartilaginous, fibrous, synovial
bony, elastic, fibrous, synovial
7. Describe the significance of the H zone in muscle contraction.
The H zone is significant as it is the site where calcium ions are
released during muscle contraction.
The H zone is significant because it represents the area where only
thick filaments are present, which is important during muscle
contraction as it changes size.
The H zone is significant because it contains both thick and thin
filaments, allowing for muscle contraction.
The H zone is significant because it is the area where muscle fibers
attach to the bone.
,8. Describe the role of the sarcolemma in skeletal muscle fibers.
The sarcolemma stores calcium ions for muscle contraction.
The sarcolemma acts as a barrier that regulates the entry and exit of
substances in and out of the muscle fiber.
The sarcolemma is responsible for muscle contraction.
The sarcolemma provides structural support to the muscle fiber.
9. What is the name of the tough, fibrous, outermost covering of the spinal
cord?
filum terminale
arachnoid matter
pia matter
dura matter
10. The area that contains no thin filaments
A band
interclated disc
I band
H zone
11. What is the definition of a first class lever in human anatomy?
A lever system where the effort is applied at one end and the load at
the other.
A lever system that operates in a circular motion.
A lever system where the load is between the fulcrum and the effort.
, A lever system where the fulcrum is positioned between the effort
and the load.
12. In the context of the neural impulse, the action potential in a neuron abides
by the principle.
Nature-nature.
Permeability.
All or nothing.
Depolarizing.
13. Describe the role of myelinated axons in the white matter of the spinal cord.
Myelinated axons protect the spinal cord from injury.
Myelinated axons are responsible for muscle contraction.
Myelinated axons facilitate faster transmission of nerve impulses.
Myelinated axons store neurotransmitters for synaptic transmission.
14. Describe how a first class lever functions in the human body, providing an
example.
A first class lever functions by having the fulcrum between the
effort and the load, such as in the action of the neck when nodding.
A first class lever is used primarily in the legs for walking.
A first class lever allows for greater load movement than effort, like
lifting weights.
A first class lever has the load in the middle, like a seesaw.
15. How does skeletal muscle function in maintaining body temperature?
using energy during contractions
STUDY GUIDE | PRACTICE QUESTIONS & ANSWERS
1. The function of the ventricles in the brain is to:
Process sensory information
Store and circulate cerebrospinal fluid
Initiate voluntary movements
Produce neurotransmitters
2. Which of the following is/are considered function(s) of skeletal muscle?
All of the listed responses are correct.
Maintain body temperature
Maintain posture and body position
Produce skeletal movement
3. What is a characteristic feature of diathrosis joints?
They are immovable.
They are slightly movable.
They are freely movable.
They are found only in the skull.
4. Describe the primary roles of neuroglia in the nervous system.
Neuroglia transmit nerve impulses and form synapses.
Neuroglia are responsible for the production of neurotransmitters.
, Neuroglia support and protect neurons, maintain homeostasis, and
assist in the circulation of cerebrospinal fluid.
Neuroglia are the main cells involved in muscle contraction.
5. If a patient has a condition that impairs the secretion of cerebrospinal fluid by
Neuroglia, what potential symptoms might they experience?
Increased intracranial pressure and neurological deficits
Improved circulation and reduced inflammation
Enhanced reflexes and improved cognitive function
Decreased muscle tone and increased joint flexibility
6. What are the four main classifications of joints in the human body?
cartilaginous, synovial, movable, immovable
fibrous, synovial, flexible, rigid
bony, cartilaginous, fibrous, synovial
bony, elastic, fibrous, synovial
7. Describe the significance of the H zone in muscle contraction.
The H zone is significant as it is the site where calcium ions are
released during muscle contraction.
The H zone is significant because it represents the area where only
thick filaments are present, which is important during muscle
contraction as it changes size.
The H zone is significant because it contains both thick and thin
filaments, allowing for muscle contraction.
The H zone is significant because it is the area where muscle fibers
attach to the bone.
,8. Describe the role of the sarcolemma in skeletal muscle fibers.
The sarcolemma stores calcium ions for muscle contraction.
The sarcolemma acts as a barrier that regulates the entry and exit of
substances in and out of the muscle fiber.
The sarcolemma is responsible for muscle contraction.
The sarcolemma provides structural support to the muscle fiber.
9. What is the name of the tough, fibrous, outermost covering of the spinal
cord?
filum terminale
arachnoid matter
pia matter
dura matter
10. The area that contains no thin filaments
A band
interclated disc
I band
H zone
11. What is the definition of a first class lever in human anatomy?
A lever system where the effort is applied at one end and the load at
the other.
A lever system that operates in a circular motion.
A lever system where the load is between the fulcrum and the effort.
, A lever system where the fulcrum is positioned between the effort
and the load.
12. In the context of the neural impulse, the action potential in a neuron abides
by the principle.
Nature-nature.
Permeability.
All or nothing.
Depolarizing.
13. Describe the role of myelinated axons in the white matter of the spinal cord.
Myelinated axons protect the spinal cord from injury.
Myelinated axons are responsible for muscle contraction.
Myelinated axons facilitate faster transmission of nerve impulses.
Myelinated axons store neurotransmitters for synaptic transmission.
14. Describe how a first class lever functions in the human body, providing an
example.
A first class lever functions by having the fulcrum between the
effort and the load, such as in the action of the neck when nodding.
A first class lever is used primarily in the legs for walking.
A first class lever allows for greater load movement than effort, like
lifting weights.
A first class lever has the load in the middle, like a seesaw.
15. How does skeletal muscle function in maintaining body temperature?
using energy during contractions
