BIOL 235 Midterm 2 Questions and
Answers
between the origin and insertion which is usually located proximally in limbs ? - Correct
Answers -Origin
What happens during REVERSE MUSCLE ACTION? - Correct Answers -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? - Correct Answers -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 - Correct Answers -
fulcrum
Agonist (Prime Movers) _________ muscles while antagonist ____________ muscles -
Correct Answers -contract, relax
What are muscles that contract and stabilize the intermediate joints called? - Correct
Answers -synergists
What is a group of skeletal muscles, their blood vessels, and nerves called? - Correct
Answers -Compartment
Origin an insertion of the masseter - Correct Answers -Origin = maxilla and zygomatic
arch
Insertion = angle and ramus of the mandible
What is the origin of the deltoid ? - Correct Answers -acromial extremity of clavicle,
acromion, and spine of scapula
What are the 3 muscles that make up the hamstring ? - Correct Answers -
semimebranosous, semitendinosus, biceps femoris
What 4 muscles make up the Quads ? - Correct Answers -rectus femoris, vastus
lateralis, vastus medialis, vastus intermedialis
, What do you call a small mass of nervous tissue that is made up primarily of neuron cell
bodies? - Correct Answers -Ganglia
The somatic nervous system only sends impulses to ________ muscles - Correct
Answers -skeletal
Fight or Flight is associated with which division of the autonomic nervous system? -
Correct Answers -Sympathetic
What is the ability to respond to a stimulus and convert it into an action potential? -
Correct Answers -electrical excitability
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? - Correct Answers -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? - Correct
Answers –Bipolar
The outer layer of the adrenal cortex is the _______________ - Correct Answers -zona
glomeruslosa
The biggest zone of the adrenal cortex which secreted mainly glucocorticoids is the
_________________ - Correct Answers -zona fasciculata
The inner zone of the adrenal cortex is arranged in branching cords and produces small
amounts of androgens and is called the ________________ - Correct Answers -zona
reticularis
What hormone does this describe?
- major mineralcorticoid
- regulates homeostasis of sodium and potassium ions
- helps adjust blood pressure and volume
- promotes excretion of H+ in urine (preventing acidosis) - Correct Answers -aldosterone
What type of neurons has dendrites and one axon that are fused together to form a
continuous process that emerges from the cell body? - Correct Answers -Unipolar or
Pseudounipolar
The processes of ________ make contact with blood capillaries, neurons, and the pia
mater - Correct Answers -astrocytes
What neuroglia has these functions?
1. contain microfilaments that give them strength and allow them to support neurons
Answers
between the origin and insertion which is usually located proximally in limbs ? - Correct
Answers -Origin
What happens during REVERSE MUSCLE ACTION? - Correct Answers -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? - Correct Answers -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 - Correct Answers -
fulcrum
Agonist (Prime Movers) _________ muscles while antagonist ____________ muscles -
Correct Answers -contract, relax
What are muscles that contract and stabilize the intermediate joints called? - Correct
Answers -synergists
What is a group of skeletal muscles, their blood vessels, and nerves called? - Correct
Answers -Compartment
Origin an insertion of the masseter - Correct Answers -Origin = maxilla and zygomatic
arch
Insertion = angle and ramus of the mandible
What is the origin of the deltoid ? - Correct Answers -acromial extremity of clavicle,
acromion, and spine of scapula
What are the 3 muscles that make up the hamstring ? - Correct Answers -
semimebranosous, semitendinosus, biceps femoris
What 4 muscles make up the Quads ? - Correct Answers -rectus femoris, vastus
lateralis, vastus medialis, vastus intermedialis
, What do you call a small mass of nervous tissue that is made up primarily of neuron cell
bodies? - Correct Answers -Ganglia
The somatic nervous system only sends impulses to ________ muscles - Correct
Answers -skeletal
Fight or Flight is associated with which division of the autonomic nervous system? -
Correct Answers -Sympathetic
What is the ability to respond to a stimulus and convert it into an action potential? -
Correct Answers -electrical excitability
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? - Correct Answers -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? - Correct
Answers –Bipolar
The outer layer of the adrenal cortex is the _______________ - Correct Answers -zona
glomeruslosa
The biggest zone of the adrenal cortex which secreted mainly glucocorticoids is the
_________________ - Correct Answers -zona fasciculata
The inner zone of the adrenal cortex is arranged in branching cords and produces small
amounts of androgens and is called the ________________ - Correct Answers -zona
reticularis
What hormone does this describe?
- major mineralcorticoid
- regulates homeostasis of sodium and potassium ions
- helps adjust blood pressure and volume
- promotes excretion of H+ in urine (preventing acidosis) - Correct Answers -aldosterone
What type of neurons has dendrites and one axon that are fused together to form a
continuous process that emerges from the cell body? - Correct Answers -Unipolar or
Pseudounipolar
The processes of ________ make contact with blood capillaries, neurons, and the pia
mater - Correct Answers -astrocytes
What neuroglia has these functions?
1. contain microfilaments that give them strength and allow them to support neurons
