Practice Quiz from Skeletal and Muscle Systems Flashcards
The most caudal of the sternabra
xiphoid process
The “pacemaker” of the heart is the sinoatrial node located in the wall of the
right atrium
____refers to either extremity of a long bone.
CHECK
makes up the hooks
CHECK
The contracting unit of a skeletal muscle is the
sarcomere
___is the second of the cervical vertebrae.
the axis
___a mature bone cell
osteocyte
Believed to be the vestigial remnants of carpal and tarsal bones or extra toes possessed by ancestors of the modern horse.
ergots
____dense or cortical bone.
Compact bone
Cardiac muscle is classified as
involuntary striated muscle
Joint 12 of the cow
CHECK
identify vertebrae, region of the cow
CHECK
_____ refers to either extremity of a long bone.
epiphysis
____ area dorsal to the scapulas.
withers
In muscle the source of a phosphate molecule needed to recharge an ADP molecule to an ATP molecule is
creatine phosphate
Believed to be the vestigial remnants of metacarpal and metatarsal pads located behind the fetlocks of all equids.
ergots
spongy bone
cancellous
cylindrical shaft of a long bone.
diaphysis
The internal abdominal oblique muscle is partially named based on
the direction its fibers run
A skeletal muscle that contracts at the same time as the prime mover muscle and assists in carrying out the prime mover’s action is a/an
synergist
When skeletal muscle contracts, which site undergoes the greatest movement?
insertion of the muscle
Which motor unit would an animal most likely use to move its eyeball?
1 nerve fiber, 2 muscle fibers
The outermost connective tissue layer of a muscle is the
epimysium
_In young animals is filled with red bone marrow.
Medullary cavity
The most cranial of the sternebrae
manubrium
where is the dens located?
atlas
largest foramen in the body.
CHECK
identify bone 15 in the cow
CHECK
shoulder blade.
scapula
_calcaneus bone projects upward and backward to form this area.
CHECK
the knee is ___ to the foot
CHECK
Groups of cardiac muscle cells adapt their contraction rate to
the contraction rate of the fastest cell.
_____ splint bones in a horse in forelegs
2nd and 4th metacarpals
The average muscle fiber contraction cycle lasts about
0.1 second
______also called the coffin bone.
distal phalanx
T-bone steak from these vertebrae
CHECK
____ fibrous membrane that lines the marrow cavity.
endosteum
also called the distal sesamoid bone.
navicular bone
The all-or-nothing principle of muscle physiology refers to
CHECK the contraction of a muscle fiber
The three bones uniting at the acetabulum
ilium, ischium, and pubis.
Type of cartilage found in the external ear and in the epiglottis
elastic
The triceps brachii muscle is partially named based on
its location
How many cervical vertebra are in a manatee
6
The ______________ _______________ is a pair of large holes in the pelvis located on either side of the pelvic symphysis.
obturator symphysis
connects bone to bone.
ligament
The goat’s knee is ____________ to its hoof.
proximal CHECK
Sloth has ________ (a number) Cervical vertebrae.
5-6 CHECK
___ and ____ are two main minerals making up bone.
Ca, P CHECK
makes up the pins.
ischium? CHECK
The skull, vertebrae, ribs, sternum make up this major skeleton part _____________.
CHECK
vertebrae in the rump region.
CHECK
