2.1
Body system
collection of organs that work together
skeletal system
body system made up of 206 bones that provides structure, shape, and protection to the body
circulatory system
body system formed by all the structures that move blood through the body; also called the cardiovascular system
plasma
liquid part of blood
what is the largest organ
The skin
epidermis
outermost layer of the skin
tendons
structures made of tough tissue that connect muscle to bone
heart
hollow, muscular organ located in the center of the chest; pumps blood into the circulatory system
respiratory system
body system of organs that obtain vitally important oxygen from the outside world
best healthy food to eat
vegtables
dermis
middle layer of the skin, which contains hair follicles
joint
location in the body where two or more bones meet and are held together
arteries
blood vessels that carry oxygen-rich blood
bronchi
two air passages, each of which connects the trachea to a lung
what produces blood
heart
muscular system
body system that helps the body move and aids other body systems
ligaments
body system that helps the body move and aids other body systems
capillaries
small arteries that deliver oxygen and nutrients to cells and pick up cells’ waste
respiration
exchange of oxygen and carbon dioxide between the body and the air around it
what helps you pump more blood
running
integumentary system
body system that covers and protects the entire body
hypodermis
innermost layer of the skin, which contains fat, blood vessels, and nerve endings; attaches to underlying bone and muscle
veins
blood vessels that carry oxygen-poor blood
diaphragm
sheet of muscle beneath the lungs and above the abdomen that contracts and relaxes to help the chest expand so a person can inhale or shrink so a person can exhale
Best body activity
sports