BIOL 235 MIDTERM 2 EXAM QUESTIONS AND ANSWERS
GRADED A+ 100% GUARANTEED SUCCESS.
between the origin and insertion which is usually located
proximally in limbs? ANS >>> Origin
What happens during REVERSE MUSCLE ACTION? ANS >>>
specific movements of the body the actions are reversed
THEREFOR the positions of the origin and insertion of a muscle
are switched
What is a mechanical advantage using the example of a lever?
ANS >>> 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
Bones serve as levers and joints serve as ________ for the lever
ANS >>> fulcrum
,Agonist (Prime Movers) _________ muscles while antagonist
____________ muscles ANS >>> contract, relax
What are muscles that contract and stabilize the intermediate
joints called? ANS >>> synergists
What is a group of skeletal muscles, their blood vessels, and
nerves called? ANS >>> Compartment
Origin an insertion of the masseter ANS >>> Origin = maxilla
and zygomatic arch
Insertion = angle and ramus of the mandible
What is the origin of the deltoid? ANS >>> acromial extremity
of clavicle, acromion, and spine of scapula
What are the 3 muscles that make up the hamstring? ANS >>>
semimembranosus, semitendinosus, biceps femoris
,What 4 muscles make up the Quads? ANS >>> rectus femoris,
vastus lateralis, vastus medialis, vastus intermedial is
What do you call a small mass of nervous tissue that is made up
primarily of neuron cell bodies? ANS >>> Ganglia
The somatic nervous system only sends impulses to ________
muscles ANS >>> skeletal
Fight or Flight is associated with which division of the
autonomic nervous system? ANS >>> Sympathetic
What is the ability to respond to a stimulus and convert it into
an action potential? ANS >>> electrical excitability
What type of neurons usually has several dendrites and on
axon, and are norm ally found in brain and spinal cord as well as
motor neurons? ANS >>> Multipolar
What type of neurons has 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? ANS >>> Bipolar
, What type of neurons has dendrites and one axon that are
fused together to form a continuous process that emerges from
the cell body? ANS >>> Unipolar or Pseudo unipolar
The processes of ________ make contact with blood capillaries,
neurons, and the pia mater ANS >>> astrocytes
What neuroglia has these functions?
1. contain microfilaments that give them strength and allow
them to support neurons
2. contributes to the effectiveness of BBB
3.in embryo, they secret chemicals that regulate things
4. help maintain an appropriate chemical environment for
nerve impulse generation
5. play a role in hearing and memory ANS >>> Astrocytes
What neuroglia resembles astrocytes but are smaller and
contain fewer processes as well as are responsible for forming
Nd maintain myelin sheath? ANS >>> Oligodendrocytes
GRADED A+ 100% GUARANTEED SUCCESS.
between the origin and insertion which is usually located
proximally in limbs? ANS >>> Origin
What happens during REVERSE MUSCLE ACTION? ANS >>>
specific movements of the body the actions are reversed
THEREFOR the positions of the origin and insertion of a muscle
are switched
What is a mechanical advantage using the example of a lever?
ANS >>> 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
Bones serve as levers and joints serve as ________ for the lever
ANS >>> fulcrum
,Agonist (Prime Movers) _________ muscles while antagonist
____________ muscles ANS >>> contract, relax
What are muscles that contract and stabilize the intermediate
joints called? ANS >>> synergists
What is a group of skeletal muscles, their blood vessels, and
nerves called? ANS >>> Compartment
Origin an insertion of the masseter ANS >>> Origin = maxilla
and zygomatic arch
Insertion = angle and ramus of the mandible
What is the origin of the deltoid? ANS >>> acromial extremity
of clavicle, acromion, and spine of scapula
What are the 3 muscles that make up the hamstring? ANS >>>
semimembranosus, semitendinosus, biceps femoris
,What 4 muscles make up the Quads? ANS >>> rectus femoris,
vastus lateralis, vastus medialis, vastus intermedial is
What do you call a small mass of nervous tissue that is made up
primarily of neuron cell bodies? ANS >>> Ganglia
The somatic nervous system only sends impulses to ________
muscles ANS >>> skeletal
Fight or Flight is associated with which division of the
autonomic nervous system? ANS >>> Sympathetic
What is the ability to respond to a stimulus and convert it into
an action potential? ANS >>> electrical excitability
What type of neurons usually has several dendrites and on
axon, and are norm ally found in brain and spinal cord as well as
motor neurons? ANS >>> Multipolar
What type of neurons has 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? ANS >>> Bipolar
, What type of neurons has dendrites and one axon that are
fused together to form a continuous process that emerges from
the cell body? ANS >>> Unipolar or Pseudo unipolar
The processes of ________ make contact with blood capillaries,
neurons, and the pia mater ANS >>> astrocytes
What neuroglia has these functions?
1. contain microfilaments that give them strength and allow
them to support neurons
2. contributes to the effectiveness of BBB
3.in embryo, they secret chemicals that regulate things
4. help maintain an appropriate chemical environment for
nerve impulse generation
5. play a role in hearing and memory ANS >>> Astrocytes
What neuroglia resembles astrocytes but are smaller and
contain fewer processes as well as are responsible for forming
Nd maintain myelin sheath? ANS >>> Oligodendrocytes
