Skeletal muscles are also known as striped, striated, somatic or voluntary muscles. They are attached to the skeleton and respond quickly to stimuli, allowing for fast contractions but resulting in easy fatigue. Skeletal muscles give the body its shape and structure, and without them the body would have no form beyond guts and flesh. The human skeletal system consists of an axial and appendicular skeleton that together protect organs and allow for movement.

1. Skeletal Muscles
Skeletal Muscles are also referred to as striped, striated, somatic or voluntary muscles
these muscles are attached to the skeleton.
Skeletal muscles respond quickly to stimuli they are capable of fast contractions and they
therefore get fatigued easily and they help in adjusting the individual to external stimuli.
Skeletal muscles give the body a frame without the skeletal structure the body would be
guts and flesh with no form.
The human skeletal system is perpendicularly symmetrical and it consists of the axial
skeleton and appendicular skeleton.
The Axial skeleton is made up of 80 bones. The main function of the axial skeleton is to
protect organs like the brain, heart and lungs and maintaining the upright structure of the
body. 633 skeletal muscles are axial.
There are 26 vertebral column and 12 Thoracic Cage
There is 1 pair of ribs, 1 sternum and 29 skull.
The Appendicular Skeletal is made up of 126 bones and is attached to the axial skeleton.
It protects the reproduction, excretion and digestion organs. The body is able to move
because of these muscles.
Appendicular skeletal bones consists of Pectoral girdle9 (shoulder portion) 4, Upper
limbs (arms) 60, Pelvic girdle (hip portion) 2, and lower limbs (legs) 60.
The human skeletal gives a shape to the human body. It supports body organs and
muscles.
The joints that are present between different bones and are responsible for body
movement.

2. Stem cells are produced in the bone marrow; the bone marrow is part of the skeletal
system. Without bone marrow a lot of patients with leukemia would die.
Osteocalcin is the hormone which regulates fat deposition and glucose. This hormone is
released by bones.
Protection is the most important function of the human skeletal system.
The organs that are protected are the brain, lungs, heart, shoulder, knee, elbow, wrist and
ankle.
The bones that the skeletal system protects are the skull, rib cage, clavicle, scapula,
patella ulna, carpals, and tarsal.
There is a difference between the female and male skeletal system. The pelvis (bone in
hip portion) is large and flat in females to make childbirth possible. Bones in females are
rounder and smaller than they are in males.