HAS ll Finals 4/28 Flashcards
In the long bones of a child, the part of the bone that is actually growing is the:
epiphyseal disc
The ligaments that connect bones are anchored to the:
periosteum
The malleus, incus, and stapes are within the ____ bone and are concerned with _____
temporal bone, hearing
The largest and strongest vertebrae are the:
lumbar
The largest bones of the arm and leg:
humerus, femur
Which of joint is NOT a freely movable joint
symphysis
The pituitary gland is directly protected by the:
sphenoid bone
Red bone marrow is found in the:
spongy bone in flat, irregular bones
Red bone marrow produces these cells:
RBC, WBC, platelets
Sutures are the ____ joints of the ____
immovable, skull
Which bone does NOT protect an internal organ
phalanges
Which bone is not part of the braincase that protects the brain?
mandible
The hormones that regulate blood calcium level by regulatig calcium intake or output from bones are:
calcitonin and parathyroid hormone
Vitamin necessary for efficient absorption of calcium and phosphorus by the small intestine:
D
Structure not directly involved in the functioning of a synovial joint is the:
marrow canal
Nutrients that become part of the bone matrix:
Calcium, Vitamin C
In the embryo, the bones of the arms and legs are first made up of:
cartilage
The cells that produce bone matrix and those that reabsorb bone matrix are:
osteoblasts/osteoclasts
What hormone increases the reate of mitosis in growing bones?
growth hormone
What bone is NOT part of the axial skeleton:
hip bone
Intervertebral discs are made of:
cartilage
Which is NOT an irregular bone
metacarpals
An example of a ball-and-socket joint is the one between the:
femur and hip joint
The fontanels of a baby’s skull are made of:
fibrous connective tissue
Good muscle tone is important to:
maintain posture and produce body heat
During exercise, the blood flow within a muscle is increased by:
vasodilation
When a muscle contracts, it:
shortens and pulls a bone
The more moveable attachment of a muscle to a bone is called the:
insertion
A nitrogenous waste product of muscle contraction is ______, which is excreted by the _____
creatine, kidneys
The part of the brain that coordinates voluntary movement is the:
cerebellum
The energy of ATP is released within muscle fibers by:
myosin
The contracting proteins within a muscle fiber are:
myosin and actin
The axon terminal of a motor neuron releases
acetylcholine
Synergistic muscles are those that have the same:
function
The most abundant source of energy in a muscle fiber is:
glycogen
The product of cell respiration that is considered a waste product:
carbon dioxide
Muscle fatigue is the result of the lack of ____ and the production of _____.
oxygen, lactic acid
The organ system that transports oxygen to muscles and removes carbon dioxide is the:
circulatory system
In response to a nerve impule, the elctrical changes on the sarcolemma are reversed, which is called:
depolarization
An antagonist to a muscle that flexes the arm would be a muscle that:
extends the arm
The neuromuscular junction refers to:
axon terminal, synapse, sarcolemma
Mineral released within sarcomeres to trigger contraction is:
calcium
Unconscious muscle sense is integrated by:
cerebellum, and we are unaware of it
An isometric contraction is one:
without movement
Acetylcholine make the sarcolemma more permeable to:
sodium ions