Human Body Flashcards
(25 cards)
Superior
Above
Inferior
Below
Anterior
Towards front of body
Posterior
Towards the back
Proximal
Closer to trunk of body on limb
Distal
Towards end of limb
Medial
Towards midline
Lateral
Away from midline
Epidermis
Outermost layer of skin. No nerves or blood cells. Thinner than dermis
Melanocytes
Produces melanin. In the epidermis
Melanin
Pigment that gives skin its color and helps prevent skin from burning
Dermis
Lower layer of skin. Contains nerves, blood vessels, sweat glands, hair, oil glands
Pores
Openings in the dermis that allow perspiration through
Follicles
Structures in the dermis from which hair grows
Vertebrae
The bones that make up the backbone of an organism
Joints
Allow bones to move in different ways. Immovable joints-connect bone together but allow little to no movement
Movable joints-ligaments
Ligaments
Strong connective tissue that holds bones together in movable joints
Cartilage
Connective tissue that is more flexible than bone and that protects the ends of bones and keeps them from rubbing together
Osteoporosis
A condition resulting from a loss of minerals in which the body’s bones become weak and easy to break
Axial Skeleton
Skeleton that makes up the bones of the head and trunk of body
Appendicular Skeleton
Skeleton that makes up the limbs in the body
Involuntary Muscle
A muscle that is not under conscious control
Voluntary Muscle
A muscle that is under conscious control
Tendon
Strong connective tissue that attaches muscle to bone
