Introduction to Anatomy & Physiology Terms

Anatomical Position

Body is standing erect with feet facing forward, face forward, palms of hands facing forward, arms at sides, and fingers adducted

Supine

body is lying down on back, face up

Prone

body is lying down on belly, face down

Anterior

toward the front portion of the body; the same side as your stomach;view of the body from the front

Posterior

toward the back portion of the body; opposite side of the stomach

Superior

a structure is above another; or is closer to the head when the body is in an anatomical posititon

Inferior

a structure is below another

medial

toward the middle. Also, towards the body's or structure's midline or longitudinal axis.

lateral

away from the middle or toward the sides. also, away from the body's or structure's midline or longitudinal axis. View of the body from the side.

proximal

toward the body's core or axial skeleton attachment. sometimes meaning towards the head

distal

away from the body's core or axial skeleton attachment. sometimes meaning away from the head.

superficial

relatively closer to the body's surface

deep

further inward from the body's surface

ventral

toward the front or belly side

dorsal

toward the back side

cranial or cephalic

the head or toward the head in relative terms

caudal

the tail or coccyx in humans; or towards the tail in relative terms.

plane

an imaginary flat surface representing the orientation of a blade when sectioning or slicing a body

transverse section

perpendicular to the vertical positioning of the body

vertical section

parallel to the vertical positioning of the body

sagittal section

separates into left and right divisions of the body

midsagittal section

divide the structures in half from the midline, equally separating left and right portions.

parasagittal section

also divides the body into left and right hemispheres, but off from the midline, making the hemispheres offset from the other side.

frontal section

the section that divides the anterior and posterior structures from one another

integumentary system

Consists of the skin, mucous membranes, hair, and nail

skeletal system

Protects and supports body organs and provides a framework the muscles use to support movement. Made up of bones and joints

Muscular System

Consists of skeletal muscles, tendons that connect muscles to bones, and ligaments that attach bones together to form joint

lymphatic system

the network of vessels through which lymph drains from the tissues into the blood.

respiratory system

A system of organs, functioning in the process of gas exchange between the body and the environment, consisting especially of the nose, nasal passages, nasopharynx, larynx, trachea, bronchi, and lungs.

digestive system

body system the breaks down food and absorbs nutrients

nervous system

the network of nerve cells and fibers that transmits nerve impulses between parts of the body.

endocrine system

Glands secrete hormones that regulate processes such as growth, reproduction, and nutrient use (metabolism) by body cells.

cardiovascular system

The body system that consists of the heart, blood vessels, and blood; also called the circulatory system.

urinary system

kidneys, ureters, urinary bladder, urethra

reproductive system

system of organs involved in producing offspring