Question: Contraction of muscles of the __________ group of the thigh will result in flexion of the thigh at the hip.
Answer Options:
Anterior
Posterior
Answer: Anterior
Question: What is the metabolic process that generates two ATP molecules in the cytosol of a muscle fiber?
Answer Options:
Citric acid cycle
Aerobic metabolism
Glycolysis
Electron transport chain
Answer: Glycolysis
Question: Which of the following is a function of a catalyst?
Answer Options:
To increase the activation energy of a reaction.
To increase the product yield.
To convert a nonspontaneous reaction to a spontaneous reaction.
To increase the rate of a reaction.
Answer: To increase the rate of a reaction.
Question: What type of synovial joint involves a cylindrical shape for one bone end that rotates in a ring formed by another bone and a ligament?
Answer Options:
Saddle (sellar) joint
Pivot (trochoid) joint
Condylar (ellipsoidal) joint
Hinge joint
Plane joint
Ball-and-socket (spheroidal) joint
Answer: Pivot (trochoid) joint
Question: Which of the following occurs during inhalation?
Answer Options:
Air moves from areas of low pressure to areas of high pressure.
The ribcage lowers.
The volume of the thoracic cavity decreases.
The diaphragm moves downward.
Answer: The diaphragm moves downward.
Question: A scientist predicts that germinating beans will use more oxygen than non-germinating beans. This prediction is referred to as which of the following?
Answer Options:
A hypothesis
A conclusion
An observation
Data collection
Answer: A hypothesis
Question: Movement of a body part backwards along the transverse plane is called __________.
Answer Options:
Pronation
Protraction
Supination
Retraction
Answer: Retraction
Question: The type of smooth muscle in which all of the cells contract together is __________ smooth muscle.
Answer Options:
Visceral
Multiunit
Answer: Visceral
Question: What is an example of a fibrous joint?
Answer Options:
The intervertebral disc in the vertebral column
The knee joint
The suture in the skull
The shoulder joint
Answer: The suture in the skull
Question: Which of the following joint characteristics applies to all joints of the body?
Answer Options:
All joints are connections between neighboring bones.
All joints allow movement in response to muscle contraction.
All joints are involved in elongation of long bones of the skeleton.
Answer: All joints are connections between neighboring bones.
Question: Based on their shape, what is the classification of the bones of the skull?
Answer Options:
Flat bones
Long bones
Irregular bones
Short bones
Answer: Flat bones
Question: Lifelong protection after exposure to a virus such as chickenpox is due to which of the following types of immunity?
Answer Options:
Nonspecific
Transplantation
Active
Innate
Answer: Active
Question: Actin (thin) filaments are attached to a Z line, which is located in the middle of what region of the striations?
Answer Options:
I band
A band
H zone
Answer: I band
Question: Describe the role of acetylcholinesterase in stimulation of a muscle fiber.
Answer Options:
It is the inactive form of acetylcholine, found stored in the synaptic vesicles of the neuromuscular junction.
It is the type of receptor found in the motor end plate that binds acetylcholine, initiating an electrical impulse.
It is the enzyme that breaks down acetylcholine within the synaptic cleft, ending stimulation of the muscle fiber.
It is the enzyme found in the distal part of the motor neuron axon that catalyzes the production of acetylcholine.
Answer: It is the enzyme that breaks down acetylcholine within the synaptic cleft, ending stimulation of the muscle fiber.
Question: What is the name of the class of joints consisting of bone ends held together by collagenous tissue?
Answer Options:
Fibrous joints
Cartilaginous joints
Synovial joints
Answer: Fibrous joints
Question: Bundles of muscle fibers are called __________.
Answer Options:
Fascicles
Sarcomeres
Fascia
Myofibrils
Answer: Fascicles
Question: Doing jumping jacks requires that you alternate __________ and __________ your lower extremities.
Answer Options:
Flexing; extending
Pronating; supinating
Abducting; adducting
Rotate; circumduct
Answer: Abducting; adducting