Skeletal and Muscular Systems Study Guide

The human body has ________ bones in total.

• 206

• 201

• 210

• 180

The bones of the ________ and ________ are long bones.

• arms, legs

• head, chest

• fingers, toes

• back, neck

The ________ and ________ connect the arm to the body.

• clavicle, scapula

• femur, tibia

• radius, ulna

• humerus, fibula

The ________ protects the heart and lungs.

• rib cage

• skull

• pelvis

• spine

The ________ supports the body and protects the spinal cord.

• spine

• heart

• lungs

• liver

The ________ (hip bone) connects the upper and lower parts of the body.

• pelvis

• femur

• scapula

• clavicle

Bones are made of ________, ________, and ________ cells.

• bone, cartilage, blood

• muscle, nerve, fat

• skin, tendon, ligament

• plasma, red, white

Bone hardness comes from the minerals ________ and ________.

• calcium, phosphorus

• sodium, potassium

• iron, zinc

• magnesium, copper

Bone flexibility comes from the protein ________.

• collagen

• keratin

• elastin

• myosin

Weight-bearing activities like ________ or ________ make bones stronger.

• walking, running

• swimming, cycling

• reading, writing

• sleeping, sitting