Ch. 7.3 Key Terms
What is appendicular skeleton?
appendicular skeleton forms & the extremities and is composed of the shoulder. girdle, arm bones, pelvic girdle, and leg bones.
What is diaphysis?
the shaft or central part of a long bone.
What is fontanels?
Spaces called fontanels, or "soft spots,"
What is medullary canal?
medullary canal is a cavity in the diaphysis.
What is periosteum?
The outside of bone is covered with a of tough membrane, called the periosteum
What is axial skeleton?
axial skeleton forms the main trunk of the body.com and is composed of the skull, spinal column, ribs, and breastbone.
What is endosteum?
endosteum is a membrane that lines the medullary canal and keeps the yellow marrow intact.
What is foramina?
Foramina are openings in bones that allow nerves and blood vessels to enter or leave the bone.
What is metacarpals?
metacarpals (palm of the hand)
What is Phalanges?
the bones that make up the fingers and toes
What is carpals?
carpals (wrist)
What is epiphysis?
the two extremities, or ends, are each called an epiphysis
What is humerus?
humerus (upper arm)
What is metatarsals?
metatarsals (instep of foot)
What is radius?
radius (lower arm on thumb side that rotates around the ulna to allow the hand to turn freely)
what is clavicles?
clavicles (collarbones)
What is femur?
femur (thigh)
What is joints?
Joints are areas where two or more bones join together
What is os coxae?
os coxae (coxal, or hip, bones)
What is red marrow?
spongy tissue inside bones that is responsible for producing all blood cells
What is cranium?
The cranium is the spherical structure that surrounds and protects the brain
What is fibula?
fibula (the slender smaller bone of the lower leg that attaches to the proximal end of the tibia)
What is ligaments?
Connective tissue bands, called ligaments, help hold long bones together at joints.
What is patella?
patella (kneecap)
What is ribs?
a set of 12 pairs of long, curved bones that form the rib cage to protect vital organs like the heart and lungs