Answer: a) muscle
Explanation:
technically it is part of it, but it’s not necessarily one of the mains like the rest
Muscles are not a part of the skeletal system. So, the correct option is A.
The skeletal system is comprised of bones, cartilages, tendons and ligaments. The skeletal system makes up 20 per cent of the weight of the body.
As is very commonly known, there are 206 bones in the human body. The male skeleton has a higher bone mass compared to the female skeleton. The pelvis of the female skeleton is broader to assist with childbirth and pregnancy.
The axial skeletal system comprises the bones from the head, neck, chest and spine. There are 80 bones in the axial skeletal system.
The appendicular skeletal system has bones from arms and legs and also the bones that attach the appendicular skeletal system to the axial skeletal system. There are 126 bones in this part of the skeleton.
The region where two bones join is called a joint and they are joined by a specialized tissue known as the ligament. Hence, ligaments, bones and joints are part of the skeletal system and muscles are not.
Therefore correct option is A.
Read more about the skeletal system, here https://brainly.com/question/1283837
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