Test 3 Flashcards
The type of cartilage associated with bone function and development is
Hyaline Cartilage
By weight, bone is composed of …% inorganic and …% organic material
65% inorganic and 35% organic
Hydroxapatite
Inorganic material in bone matrix, aka calcium phosphate crystal
Long bones grow in length at the
Epiphysis Plate
The ends of a long bone are known as the
Epiphysis
Which bone is not a part of axial skeleton
Possibly, scapula, clavicle, limbs
Which bone is not a part of appendicular skeleton
Possibly: skull, hyoid, vertebral column, thoracic cage
A person with a fractured mandible has a broken
their jaw bone
The _______region of the vertebral column is located in the neck
cervical
Another name for shoulder blade is the
scapula
Another name for breastbone is the
sternum
Another name for collar bone is the
clavicle
A dislocated shoulder involves separation of the ______ from the scapula.
humerus
The sites of contact between axons and muscle fibers are called
neuromuscular junctions or synapses
An action potential
electrical signals transmitted by the peripheral nervous system.
Muscle that is located in the mandibule of the head and is chewing or mastication of food
Masseter
The muscle located on the anterior and lateral sides of the neck
Sternocleidomastoid
This muscle is located on the shoulder and it elevates and rotates scapula
Trapezius
The muscle located in the head and covers the brain pan is
Epicranus
The muscle located in the head and responsible for kissing
Orbicularis Oris
The muscle located in the head and responsible for kissing
Orbicularis Oris
The muscle that moves the arm away from midline and a common site for administering injections
Deltoid
The muscle that is located in the posterior of the thigh and it flexes knee and extends the hip
Hamstrings Group
The muscle that is located in the arm and its action is flexing shoulder and elbow
Biceps Brachii
The muscle that is located in the hip and it extends hip and it abducts and rotates thigh
Gluteus Maxismus
Skeletal muscle accounts for ________% of the animal body weight
40%
The muscle that causes the major movement produced during quiet breathing
Diaphragm Muscle
Which of these muscle types is very vulnerable to interruptions in oxygen supply and very resistant to fatigue?
Cardiac Muscle
Which of these muscles is very rich in myoglobin and glycogen and has large mitochondria?
Cardiac Muscle
Which of these muscles when injured, will regenerates well?
Smooth Muscle
There are _______ pairs spinal nerves and _______ pairs of cranial nerves
31, 12
If Mr. Buff breaks the lateral bone of his forearm, he has fractured his
Radius
The wrist is composed of eight
Carpal Bones
A fractured coax is more commonly called a fractured
Hip Bone
The large bone in the thigh is the
Femur
The tiny bone of the leg is called the
Fibula
The foot contains
7 tarsals, 5 metatarsals, 14 phalanges
The larger of the leg bones is called the
Femur or Tibia if its in the lower leg
Muscle myofibrils
Thread like structures that extend from 1 end of the muscle to the other located in the interior of the muscle fiber
A sacromere extends from
composed of actin myosin myofilaments, extending between 2 adjacent z-lines
During muscle contraction, myosin molecules must bind to the active site on actin molecules called?
G-actin
The ability of muscle to shorten with force is known as
Contractility
Muscle exhibits the property of excitability, this means that the muscle
Responds to stimulus
The ability of muscle to recoil to its original resting length after it has been stretched is known as
Elasticity
The means that muscle can be stretched to its normal resting length and beyond to a limited degree is known as
Extensibility
The muscle attachment at the stationary end of bone is called?
Origin or Head
The muscle attachment at the more movable end of bone is called?
The Insertion
Structure of skeletal muscle is composed of
Skeletal muscle fibers, small amounts of connective tissue, blood vessels + nerves
The outmost connective tissue layer of skeletal muscle is
Epymysium
The skeletal muscle cell is surrounded by a sparse layer of areolar connective tissue
Endomysium
ATPase is found in
Myosin Heads
The weight-bearing bone of the leg is
Tibia
How many cervical vertebrae are found in the human body?
7
Which of the following muscles is named for its shape
deltoid, teres
Which of the following muscles is named for its location
gluteus, pectoralis, brachial
The joint between the teeth and the jaw is an example of
gomphosis
The radiocarpal joint is an example of a _______ joint
condyloid
An example of a saddle joint is the
first carpometacarpal joint
Synovial fluid
clear viscous fluid that lubricates, distributes nutrients, and absorbs shock
What type of joint is a pivot joint
Freely movable diarthrotic synovial joint, (Atlanto Axis joint)
Contracting the right sternocleidomastoid muscle would
Rotate the head to the left
The muscle that plays a special or major role in accomplishing the desired movement is called _______.
Prime Movers
