CLASSWORK. Ch. 7.4 Skeletal System Key Terms

CLASSWORK. Ch. 7.4 Skeletal System Key Terms

100

Metatarsals

1. Metatarsals – The bones of the instep of the foot.
   
   

200

Foramina

1. Foramina – Openings in bones that allow nerves and blood vessels to enter or leave the bone.
   
   

300

Endosteum

1. Endosteum – The membrane that lines the medullary canal, keeps yellow marrow intact, and produces some bone growth.
   
   

400

Patella

1. Patella – The kneecap.
   
   

500

Scapulas

1. Scapulas – The shoulder bones, which provide attachment for the upper arm bones.
   
   

CLASSWORK. Ch. 7.4 Skeletal System Key Terms

100

Metacarpals

1. Metacarpals – The bones of the palm of the hand.
   
   

200

Fontanels

1. Fontanels – “Soft spots” in the infant skull made of membrane and cartilage; allow enlargement of the skull and become solid bone by about 18 months.
   
   

300

Diaphysis

1. Diaphysis – The long shaft of a long bone.
   
   

400

Periosteum

1. Periosteum – A tough membrane covering the outside of bone that contains blood vessels, lymph vessels, and osteoblasts; necessary for bone growth, repair, and nutrition.
   
   

500

Sinuses

1. Sinuses – Air spaces in the bones of the skull that act as resonating chambers for the voice and are lined with mucous membranes.
   
   

CLASSWORK. Ch. 7.4 Skeletal System Key Terms

100

Ligaments

1. Ligaments – Connective tissue bands that help hold long bones together at joints.
   
   

200

Fibula

1. Fibula – The slender, smaller bone of the lower leg that attaches to the proximal end of the tibia.
   
   

300

Cranium

1. Cranium – The spherical structure that surrounds and protects the brain; made of eight bones.
   
   

400

Phalanges

1. Phalanges – The bones of the fingers and toes (3 in each finger, 2 in each thumb; 3 in each toe except the great toe which has 2).
   
   

500

Sternum

1. Sternum – The breastbone, consisting of the manubrium, gladiolus, and xiphoid process.
   
   

CLASSWORK. Ch. 7.4 Skeletal System Key Terms

100

Joints

1. Joints – Areas where two or more bones join together.
   
   

200

Femur

1. Femur – The upper leg bone (thigh).
   
   

300

Clavicles

1. Clavicles – The collarbones, attached to the manubrium of the sternum by ligaments.
   
   

400

Radius

1. Radius – The lower arm bone on the thumb side that rotates around the ulna to allow the hand to turn freely.
   
   

500

Tarsals

1. Tarsals – The ankle bones.
   
   

CLASSWORK. Ch. 7.4 Skeletal System Key Terms

100

Humerus

1. Humerus – The upper arm bone.
   
   

200

Epiphysis

1. Epiphysis – Each of the two extremities (ends) of a long bone.
   
   

300

Carpals

1. Carpals – The wrist bones.
   
   

400

Ribs

1. Ribs – The 12 pairs of bones that attach to the thoracic vertebrae; form part of the protective thoracic cage.
   
   

500

Vertebrae

1. Vertebrae – The 26 bones of the spinal column that protect the spinal cord and provide support.