Skeleton & Muscles Quiz Flashcards
How many bones are in the human body?
206
Part of the axial skeleton
Ribs and Sternum
How many bones are in the axial skeleton?
80
The appendicular skeleton contains how many bones
126
The following are part of the appendicular skeleton
hands, feet
The following is made in bone marrow
erythrocytes
The skeletal system does the following
protect vital organs, provide framework and storage area for calcium
Long bones are:
longer than their width
Short bones are
length and width are nearly equal
Which of the following are considered long bones
humerus
Which of the following are considered short bones
wrists
Which of the following are flat bones
scapula
Compound fracture
The bone is broken and penetrates the skin
Greenstick fracture
The bone is bent and splits, causing an incomplete fracture
The point where two bones meet is known as
joint
The three main groups of joints are…
immovable, slightly movable and freely movable
Inflammation of the joints is known as
arthritis
Skeletal muscles comprise how much of the mass of the average human body
40%
Thick filaments made of protein are called
myosin
Thin filaments made of protein are called
actin
cross-bridging
The process that describes the sliding of myosin and actin filament
The main functions of muscles are which of following
produce heat, produce movement, maintain posture
Which of the following are involuntary muscles
heart
Tendons do what?
connect muscles to bones
The three muscles categories?
Cardiac, visceral, & skeletal
Which of the following is moving a body part away from the midline
abduction
Which of the following is moving a body part toward the midline
adduction
Atrophy
Wasting or loss of muscle tissue resulting from disease or lack of use
How many bones are in appendicular skeleton
126
Axial skeleton # of bones
80
Simple fracture
The bone is broken, but the skin remains intact (closed)
Comminuted fracture
The bone breaks into many pieces and there are bone fragments in the tissue (shattered)
