quiz 3 Flashcards
Voluntary movement occurs when
skeletal muscle contracts
Which of the following is a function of the skeletal system?
Blood cell formation
Connections between two or more bones are called:
Joints
The red bone marrow is important in the skeletal function of:
blood cell formation
Skeletal muscles are striated, while Cardiac muscles are:
also striated
Formally active bone-making osteoblast cells that have become dormant are called
osteocytes
Growth ceases in this area of cartilage located between the epiphysis and the diaphysis when it is transformed into bone
epiphyseal plate
Which bone is not part of the appendicular skeleton?
coccyx
Which of the following types of joints makes up the skull?
the bone of the arm located on the thumb side is known as the
radius
joint that has limited mobility is called a:
apophysis
vertebrae is what kind of joint
cartilaginous
The femur is an example of what type of bone
long bone
skull is an example of what kind of bone
flat bone
Straightening a bent elbow is a
extension
bending movement that decreases the angle of a joint
flexion
Moving the hand in a circle around the wrist joint is an example of
circumduction
Pivot joints cause what type of joint movement
rotation
Increasing the angle of a joint is also known as
extension
Hinge joints only allow what type of movement
flexion and extension
the movement of a body part around an axis
rotation
bones of the lower leg
tibia and fibula
In bone formation, osteoclast simply means
formation of new bones
Turning the ankle so that the bottom of the foot faces toward the midline of the body is called
inversion
Which of the following does NOT usually result in muscle hypertrophy?
aerobics training
The division of the nervous system that consists of structures that regulate the body’s involuntary functions is called the
autonomic nervous system
Chemicals by which neurons communicate are called
neurotransmitters
The photoreceptor cells _______________are for day/colored vision, and _________________are for night vision.
Cones // Rods
What forms the partition between the external and middle ear.
The Eardrum
The 3 bones of the middle ear are called
Malleus, Incus and Stapes
Which sense organ has chemoreceptors called gustatory cells
the tongue
Which encapsulated nerve ending is responsible for the sensed of touch and pressure?
Tactile corpuscle
This part of the neuron passes messages away from the cell body to other glans, muscles or neurons, and is known as the
axon
The central nervous system is made up of the:
Brain and Spinal Cord
Branching projections that conduct impulses to the cell body of neuron are called
dendrites
The function of antidiuretic hormone is
Steroidal hormones typically work according to the second messenger mechanism.
false
The regulation of hormone levels in the blood depends primarily on the homeostatic mechanism called negative feedback
true
Hyp0secretion of ADH results in diabetes insipidus, a condition in which large volumes of urine are formed.
true
Of the two thyroid hormones T4 is the more abundant hormone.
true
Low dietary intake of iodine causes a painless enlargement of the thyroid gland called simple goiter.
true
Calcitonin stimulates mineral-dissolving osteoclast cells in bone tissue to increase their breakdown of bone’s hard matrix, a process that frees the calcium stored in the matrix.
false
The middle zone of the adrenal cortex secretes hormones called glucocorticoids
yes
water percentage in plasma?
91%
Which of the following makes up the highest percentage of plasma proteins?
albumins
Myeloid tissue is NOT primarily found in
coxal
Neutrophils are the largest leukocytes.
false
Eosinophils form the immune defense against parasites.
true
Leukemia is a term used to describe a number of blood cancers affecting the WBCs.
true
When a clot dislodges and circulates through the bloodstream, the dislodged part is called an embolus.
true
Blood plasma without the clotting factors is called serum.
true
B-Lymphocytes are responsible for:
antibody production
Monocytes are responsible for
inflammatory response
The reduction of RBCs following destruction of the blood-forming elements in bone marrow is called:
aplastic anemia
The word malleus means:
hammer
If the alkalinity of your blood increases toward neutral, you are a very sick person; in fact, you have alkalosis
true
Which of the following is the bone in the skeletal system that does not form a joint with any other bone in the skeleton?
hyoid
The muscle attachment to the more movable bones is called the muscle’s:
insertion
The red oxygen storing pigment found in muscles is called:
myoglobin
If muscle fibers are stimulated repeatedly without adequate periods of rest, the strength of the muscle contraction decreases, this is called:
fatigue
Muscles move bones by pulling on them.
true
The minimum level of stimulation required to cause a fiber to contract is called threshold stimulus.
true
Motor neurons are also called efferent neurons.
true
A ganglion is a group of nerve-cell bodies located the peripheral nervous system.
true
A nerve impulse is a self-propagating wave of electrical disturbance that travels along the surface of a neuron’s plasma membrane.
true
The middle layer of the eyeball is called the vascular layer.
true
General sensory receptors found near the point of junction between tendons and muscles and others found deep within skeletal muscle tissue are called chemoreceptors.
true
The eye condition in which the aqueous humor drainage is blocked and causes increased pressure in the eye that could result blindness is called:
glaucoma
The mechanoreceptors for our sense of balance, or equilibrium, are located in the saclike vestibule and the three semicircular canals of the middle ear.
false
The activation of the mechanoreceptors in the Organ of Corti generate nerve impulses that travel through the cochlear nerve to the brain and result in hearing.
true
