Unit 7: Body Structure Flashcards
Anatomical terms are derived from?
ancient greek and latin words
a body that is lying down is either?
prone: face down
supine: facing up
anterior/ventral?
describes the front or direction toward the front of the body. The toes are anterior to the foot.
posterior/dorsal?
describes the back or direction toward the back of the body. The popliteus is posterior to the patella.
superior/cranial?
describes a position above or higher than another part of the body proper. The head is superior to the toes.
inferior/caudal?
describes a position below or lower than another part of the body proper; near or toward the tail (in humans, the coccyx, or lowest part of the spinal column). The pelvis is inferior to the abdomen.
lateral?
describes the side or direction toward the side of the body. The thumb (pollex) is lateral to the digits.
medial?
describes the middle or direction toward the middle of the body. The hallux is the medial toe.
intermediate?
describes a position between a more medial and a more lateral structure. The middle finger is intermediate between the ring and index fingers.
proximal?
position in a limb that is nearer to the point of attachment or the trunk of the body. The brachium is proximal to the antebrachium.
distal?
describes a position in a limb that is farther from the point of attachment or the trunk of the body. The crus is distal to the femur.
central?
describes a position towards the middle (centre) of a structure or organ system. The central nervous system is contained within the skull and vertebral column.
peripheral?
describes a position towards the outer edge (periphery) of a structure or organ system. The peripheral nervous system is found outside the skull and vertebral column.
superficial?
describes a position closer to the surface of the body. The skin is superficial to the bones.
deep?
describes a position farther from the surface of the body. The brain is deep to the skull.
plane?
(In anatomy) imaginary two-dimensional surface that passes through the body.
sagittal plane?
divides the body or an organ vertically into right and left sides. If this vertical plane runs directly down the middle of the body, it is called the midsagittal or median plane. If it divides the body into unequal right and left sides, it is called a parasagittal plane or (less commonly) a longitudinal section.
frontal plane?
plane that divides the body or an organ into an anterior (front) portion and a posterior (rear) portion. A frontal plane is often referred to as a coronal plane
transverse plane?
plane that divides the body or organ horizontally into upper and lower portions.
what are the bodies largest body compartments?
dorsal cavity and the ventral cavity
dorsal cavity includes?
cranial cavity, spinal cavity
ventral cavity includes?
thoracic cavity, abdominopelvic cavity
what does the cranial cavity and spinal cavity contain?
cranial: brain
spinal: spinal cord
what is cerebrospinal fluid?
colorless fluid produced by the brain that cushions the brain and spinal cord.