Science - Chapter 2- Human Body ^-^

Skeleton

Your framework that is made up of all the bones in your body. You would collapse without your skeleton

Vertebrae

26 small bones that make up your back bone.

Joint

a place where two bone come together

Ligaments

The bones in movable joints are held together by this, which are made of strong connective tissue.

Compact bone

Beneath the membrane is a thick layer of this, which is hard and dense but not solid.

Spongy bone

The small spaces within this, make it lightweight but still strong.

Marrow

The two types of soft connective tissue in bone.

Cartilage

A strong connective tissue that is more flexible than bone.

Osteoporosis

A condition in which bones become weak and break easily.

Involuntary muscles

Muscles not under your conscious control. It is responsible for other activities such as digesting food.

Voluntary muscles

The muscles under your conscious control.

Skeletal muscles

provides the force that moves your bones.

Tendon

A strong connective tissue that attaches the muscle to a bone.

Smooth muscle

Involuntary muscles that work to control certain movements inside your body. Such as moving food through your digestive system.

Cardiac muscle

Is found only in your heart. Like smooth muscle, it is also involuntary.

Striated Muscle

Skeletal muscle cells that appear banded, or striated.

Epidermis

The outer layer of the skin.

Melanin

Some cells deep in the epidermis produce this, it is a pigment that colors the skin.

Dermis

The inner layer of the skin.

Pores

openings that allow sweat to reach the surface.

Follicles

Strands of hair grow within the dermis in this. Oil produced in glands around this keeps the surface of the skin moist and hairs flexible.

Cancer

is a disease in which some cells divide uncontrollably.