Regional and Directional refrences

Question 1

Anterior

Answer 1

pertaining to the front or head end.

Question 2

Posterior

Answer 2

Pertaining to the tail or hind end

Question 3

Dorsal

Answer 3

Referring to the back or uppermost side (spine)

Question 4

Ventral

Answer 4

Referring to the belly side

Question 5

lateral

Answer 5

pertaining to the side of the body situated by either side

Question 6

medial

Answer 6

at or near the middle or midline of a body or organ.

Question 7

cephalic

Answer 7

pertaining to the head.

Question 8

cranial

Answer 8

pertaining to the skull

Question 9

caudal

Answer 9

pertaining to the tail end

Question 10

proximal

Answer 10

toward or near the point of attachment. the opposite of distal.

Question 11

distal

Answer 11

away from the base point of attachment

Question 12

longitudinal

Answer 12

pertaining to the long axis of the body lengthwise

Question 13

peripheral

Answer 13

referring to parts away from the center external to.

Question 14

superficial

Answer 14

on or near the surgace

Question 15

oral

Answer 15

pertaining to the mouth or the region around the mouth

Question 16

aboral

Answer 16

pertaining to a region away from or most distant from the mouth.

Question 17

Sagittal section

Answer 17

longitudinal section through the median vertical plane that bisects the body into right an left halves.

Question 18

parasagittal section

Answer 18

section to one side of the midline, separating right and left portions of unequal size

Question 19

median plane

Answer 19

vertical longitudinal plane that extends from the dorsal to the ventral surface and passes from the anterior end to the posterior end through the middle of the body.

Question 20

symmetry

Answer 20

correspondence in size, shape and relative position of parts that are on opposite sides of a dividing line or median plane.

Question 21

spherical symmetry

Answer 21

condition in which any plane passing through the center point will divide the body into like halves.

Question 22

radial symmetry

Answer 22

condition in which any plane passing through the longitudinal axis will divide the body into similar halves.

Question 23

bilateral symmetry

Answer 23

condition in which only a sagital plane will divide the body into like halves.

Question 24

biradial symmetry

Answer 24

essentially radial but only 2 planes through the longitudinal axis created truly similar halves.

Question 25

analogous

Answer 25

similar in function and superficial structure.

Question 26

homologous

Answer 26

basically similar as a result of similarity in embryonic origin and development. (same bones different animal)