The Muscular System

biceps brachii

triceps brachii

brachialis

The muscular system is so large it is made up of over 600 skeletal, cardiac, and smooth muscles.

The  bends the elbow and rotates the forearm . It  sits under the biceps and is the primary flexor that bends the elbow. The  acts as the antagonist to both, straightening the elbow

Smooth, Cardiac, and skeletal muscles

Skeletal muscles are voluntary muscles and are used for voluntary motion like lifting, running, and swimming

Cardiac muscles are unique because they only power the heart and they involuntarily

Smooth muscles are involuntary muscles that make up the digestive system.

Muscular dystrophy (MD) is a group of genetic diseases causing progressive muscle weakness and loss of muscle mass due to mutated genes that prevent proper protein production. Symptoms often start with motor difficulties, such as frequent falls or trouble walking, and can affect the heart and lungs. Treatments include therapy and medication, with no current cure.

Muscular Dystrophy

The Skeletal System

The Skeletal System comprised 206 bones at birth humans have anywhere from 270-300 bones in their body which fuse later on in life. Small bones in the skull, spine, and limbs join together, a process that continues through adolescence. The Skeletal system also protects vital organs like heart, brain, and lungs.

Bone Marrow

Bone marrow is spongy soft tissue found inside bones it contains stem cells that produce 500 billion blood cells

daily, bone marrow acts as the body's primary blood producer the 

process of making new blood cells is called Hematopoiesis

Osteoporosis

Osteoporosis is a disease that is characterized by weakened bones with lower density making them fragile and 

highly susceptible

to fractures

commonly found

in hip, spine, and

wrist iit can be 

caused by 

smoking, genetics,

or sometimes it

can just happen 

to old people