Anatomical terms you should know for our next class:
Abduction:
movement of a limb
away from the midline of the body.
Adduction: Movement of a limb
toward the midline of the body.
Anterior tip of sternum: end of the breast bone nearest the head
Anterior: The
portion of the body toward the head. Opposite the posterior portion.
Apical:
The adjectival form of apex, which is the tip of a structure. The apical
portion of a lepidopteran wing is the tip that is most anterior and farthest
from the base
(where the wing attaches to the body).
Axis: The
imaginary line drawn from the tip of the head to the tip of the abdomen.
Essentially equivalent to midline.
Basal: The
adjectival form of base. The basal portion of a lepidopteran wing is the
region closest to the point of attachment to the body.
Caudal: Pertaining to, situated in, or toward the tail or the hind
part. Or below another structure.
Circumduction: The circular movement of
a limb such that the distal end of the limb delineates an arc.
Contralateral: Taking place or
originating in a corresponding part on an opposite side.
Cranial: Toward the head, as opposed to
caudad.
Deep: Away from the exterior surface or
further into the body, as opposed to superficial.
Depression: An area that is sunk below
its surroundings; a hollow.
Distal:
Farther from the axis of the body; opposite of proximal.
Dorsal: The
side of the that is opposite the side with the legs and mouth parts. The upper
surface when the animal is sitting at rest, opposite the ventral surface.
Elevation:
That which is raised up or elevated; as, a lifting above anatomical position.
Epiglottis: The thin elastic
cartilaginous structure located at the root of the tongue that folds over the
glottis to prevent food and liquid from entering the trachea during the act of
swallowing.
Eversion: The
condition of being turned outward.
Extension:
(1)The act of straightening a limb.
External nares: An external opening in
the nasal cavity of a vertebrate; a nostril.
Eyes: Either of a
pair of hollow structures located in bony sockets of the skull, functioning
together or independently, each having a lens capable of focusing incident light
on an internal photosensitive retina from which nerve impulses are sent to the
brain; the vertebrate organ of vision.
Flexion: The
process of bending or the state of being bent. Flexion of the fingers results in
a clenched fist.
Frontal plane: A plane parallel to the
long axis of the body and perpendicular to the sagittal plane that separates the
body into front and back portions.
Genital papillae: external, visible
portion of the vulva (female)
Hard palate: The
relatively hard, bony anterior portion of the palate.
Hoof: The horny sheath covering the
toes or lower part of the foot of a mammal
Horizontal: Parallel to the floor, a plane passing
through the standing body parallel to the floor.
Inferior: In
a lower position, relative to some other structure or region. Opposite of superior.
Inferolateral: Below and to one side. Both inferior and
lateral.
Intermediate: Lying or being in the
middle place or degree, or between two extremes; intervening; interposed;
interjacent; as, an intermediate space or time
Inversion: 1) To turn inward. To invert
the foot is to move its forepart toward the midline of the body.
Ipsilateral:
On the same side. The opposite of contralateral (the other or opposite
side). For example, a tumor involving the right side of the brain may affect
vision ipsilaterally (that is, in the right eye).
Lateral pelvic tilt: standing
“hip-shot”; lowering one side of the pelvis by bending one knee.
Lateral: On
the side of a structure or body, away from the midline.
Mammary papillae: nipples; indicate how
many mammary glands there are
Mandible: The lower jaw of a vertebrate
animal.
Maxilla: Either of a pair of bones of
the human skull fusing in the midline and forming the upper jaw.
Medial: The
adjectival form of median, referring to the middle of the body or
structure. If referring to the body, the medial line is equivalent to the
midline. If referring to a wing, the middle of the wing.
Midline: A line drawn down the middle
of the body, from anterior to posterior. Essentially equivalent to axis.
Opposition: (1) The act of opposing
or resisting. (2) Placement opposite to or in contrast with another.
Oral cavity: mouth
Parietal: Adjective from the Latin "parietalis" meaning "belonging to the wall" that the ancient anatomists used to designate the wall, as of a body cavity. For examples, there are the:
Parietal
bone -- the main
side bone of the skull.
Parietal
lobe -- the main side lobe
of the brain (it is beneath the parietal bone).
Parietal pericardium
-- the outer membrane
around the heart.
Parietal peritoneum
-- the membrane lining the abdominal
cavity (as opposed to the visceral
peritoneum that envelops the abdominal
organs).
Pectoral: muscles of the "anterior
chest" (the front of the chest).
Pelvic: Having to do with the
pelvis, the lower part of the abdomen, located between the hip bones
Pinnae: the largely cartilaginous
projecting portion of the external ear
Posterior:
The portion of the body toward the abdomen and genital opening. Opposite the anterior
portion.
Pronation: Rotation of the forearm and hand so that the palm is down (and
the corresponding movement of the foot and leg with the sole down), as opposed
to supination.
Prone: With the front or ventral
surface downward (lying face down), as opposed to supine.
Protraction: A drawing out, or
continuing; the act of delaying the termination of a thing; prolongation;
continuance; delay; as, the protraction of a debate.
Proximal: Closer to the axis of the
body; opposite of distal.
Retraction: The act of retracting or
shortening; as, the retraction of a severed muscle; the retraction of a sinew.
(b) The state or condition of a part when drawn back, or towards the center of
the body.
Rotation: The act or process of turning
around a center or an axis
Saggital plane: A vertical plane
passing through the standing body from front to back, that separates the body
into left and right portions.
Sagittal: A vertical plane passing through the standing body from front
to back. The mid-sagittal, or median plane, splits the body into left and right
halves.
Scrotum: The external sac of skin
enclosing the testes in most mammals.
Snout: The projecting nose, jaws, or
anterior facial part of an animal's head.
Soft palate: The movable fold,
consisting of muscular fibers enclosed in a mucous membrane, that is suspended
from the rear of the hard palate and closes off the nasal cavity from the oral
cavity during swallowing or sucking.
Superficial: On the surface or shallow, as opposed to
deep.
Superior: In
a higher position, relative to some other structure or region, above. Opposite
of inferior.
Supination: Rotation of the forearm and
hand so that the palm is upward (and the corresponding movement of the foot and
leg), as opposed to pronation.
Supine: With the back or dorsal surface downward (lying face up), as
opposed to prone.
Tail: The posterior part of an animal,
especially when elongated and extending beyond the trunk or main part of the
body.
Terminal:
Opposite to basal; the terminal portion of a lepidopteran wing is the
region farthest from the point of attachment to the body (also called the outer
margin.
Tongue: The fleshy, movable, muscular
organ, attached in most vertebrates to the floor of the mouth, the principal
organ of taste
Transversal plane: a horizontal plane
passing through the standing body so that the transverse plane is parallel to
the floor.
Transverse:
Running across a structure or body. On segments of a caterpillar, a line running
across a body segment from dorsal to ventral.
Umbilical artery: Carries oxygenated
blood from the mother to the fetus
Umbilical cord: The flexible cordlike
structure connecting a fetus at the abdomen with the placenta and containing two
umbilical arteries and one vein that transport nourishment to the fetus and
remove its wastes.
Umbilical vein: Carries de-oxygenated
blood from the fetus to the mother
Urogenital opening: opening in the skin
for the urethra; allows for the wxpulsion of liquid wastes
Ventral: The
underside of the animal when it is sitting at rest, Pertaining
to the abdomen, opposite the dorsal side.
Vertical: Upright, as opposed to horizontal.
Visceral: Referring to the viscera,
the internal organs of the body, specifically those within the chest (as the heart
or lungs)
or abdomen
(as the liver,
pancreas
or intestines).