skeletal and muscular system Flashcards
voluntary muscles
muscle whose action is normally controlled by an individual’s will; mainly skeletal muscle
Involuntary muscles
The muscles whose functioning cannot be controlled are called involuntary muscles
smooth muscles
described as an involuntary, non-striated muscle
skeletal muscles
muscles that connect to your bones and allow you to perform a wide range of movements and functions
cardiac muscles
makes up the thick middle layer of the heart. It is one of three types of muscle in the body
epidermis
Your epidermis is the outermost layer of skin on your body
dermis
The inner layer of the two main layers of the skin.
hypodermis
the bottom layer of skin in your body
joints
Joints are where two bones meet
chemical digestion
where complex molecules like proteins, fats, and carbohydrates are broken down into smaller pieces that your body can use.
enzymes
proteins that help speed up metabolism, or the chemical reactions in our bodies
salivia
liquid secreted into the mouth by glands
movable joints
the joints that are capable of moving in a variety of directions
immovable joints
the two or more bones are in close contact, but no movement can occur
bile
digestive fluid produced by the liver and stored in the gallbladder