Page 13 - SAAT BIOLOGY PART 2

SAAT BIOLOGY MR.MOHAMED ELGAYAR MRPROF.NET

• Rheumatoid arthritis: affected joints lose their strength and

function and are inflamed

• Support: supports and holds up the body.

• Protection: skull protects the brain, vertebra protects the

spinal column.

• Formation of blood cells: red bone marrow produces red

blood cells, white blood cells, and Platelets.

• Reservoir: stores calcium and phosphorus.

▪ Muscles Types:

Skeletal muscles: striated, voluntary muscles, cause

movements. Composed of actin and myosin. Ex: muscles that

move arms.

Smooth muscles: not striated, involuntary muscles. Ex:

muscles that line the esophagus, stomach, bladder, and uterus.

Cardiac muscles: striated, involuntary. Ex: heart.

MRPROF.NET MR.MOHAMED ELGAYAR MRPROF.NET@GMAIL.COM