BIOL 235 Midterm 2 Questions with Correct Answers

BIOL 235 Midterm 2 Questions with Correct Answers


Question 1:
between the origin and insertion which is usually located proximally in limbs ?
Answer:
Origin



Question 2:
What happens during REVERSE MUSCLE ACTION?
Answer:
specific movements of the body the actions are reversed THEREFOR the positions of the origin
and insertion of a muscle are switched



Question 3:
What is a mechanical advantage using the example of a lever?
Answer:
if the load is closer to the fulcrum and the effort is farther from the fulcrum only a small about
of effort is needed to move the load



Question 4:
Bones serve as levers and joints serve as
Answer:
for the lever Ans-fulcrum



Question 5:
Agonist (Prime Movers)
Answer:
muscles while antagonist muscles Ans-contract, relax



Question 6:
What are muscles that contract and stabilize the intermediate joints called?
Answer:

,synergists



Question 7:
What is a group of skeletal muscles, their blood vessels, and nerves called?
Answer:
Compartment



Question 8:
What is the ability to respond to a stimulus and convert it into an action potential?
Insertion = angle and ramus of the mandible
Answer:
Insertion = angle and ramus of the mandible



Question 9:
Insertion = angle and ramus of the mandible Insertion = angle and ramus of the mandible What
is the origin of the deltoid ?
Answer:
acromial extremity of clavicle, acromion, and spine of scapula



Question 10:
What are the 3 muscles that make up the hamstring ?
Answer:
semimebranosous, semitendinosus, biceps femoris



Question 11:
What 4 muscles make up the Quads ?
Answer:
rectus femoris, vastus lateralis, vastus medialis, vastus intermedialis



Question 12:
The somatic nervous system only sends impulses to
Answer:

,muscles Ans-skeletal



Question 13:
Fight or Flight is associated with which division of the autonomic nervous system?
Answer:
Sympathetic



Question 14:
What neuroglia resemble astrocytes but are smaller and contain fewer processes as well as are
responsible fro forming nd maintiang myelin sheath?
What type of neurons usually have several dendrite and on axon , and are norm ally found in
brain and spinal cord as well as motor neurons?
Answer:
Multipolar



Question 15:
What type of neurons usually have several dendrite and on axon , and are norm ally found in
brain and spinal cord as well as motor neurons? Multipolar What type of neurons have one
main dendrite and one axon as well as are primarily found in the retina of the eye, inner ear,
and the olfactory area of brain?
Answer:
Bipolar



Question 16:
What type of neurons has dendrites and one axon that are fused together to form a continuous
process that emerges from the cell body?
Answer:
Unipolar or Pseudounipolar



Question 17:
The processes of
Answer:
make contact with blood capillaries, neurons, and the pia mater

, Question 18:
Ans-astrocytes
What neuroglia has these functions?
contain microfilaments that give them strength and allow them to support neurons contributes
to the effectiveness of BBB
in embyro, they secret chemicals that regulate things
help maintain an appropriate chemical environment for nerve impulse generation
Answer:
contain microfilaments that give them strength and allow them to support neurons



Question 19:
play a role in hearing and memory
Answer:
Astrocytes



Question 20:
What neuroglia are small cells with slender processes that give them a spine like projections as
well as act as phagocytes?
Answer:
Microglial Cells



Question 21:
What are the 2 types of neuroglia in the PNS?
Answer:
Schwann and satellite cells



Question 22:
What type of motor neuron directly supplies skeletal muscle fibers?
Answer:
lower motor neurons



Question 23:
inability of most anions to leave the cells
Answer: