Bio 271 Final Exam Questions with Correct
Answers
agittal
Vertical plane passing through the body dividing it into unequal right and left parts.
Midsagittal
Vertical plane passing through the center of the body dividing it into equal right and left
halves.
Frontal/coronal
vertical plane passing through the body dividing it into anterior and posterior parts.
transverse/horizontal
perpendicular to the coronal and sagittal planes, cutting the body into superior and inferior
parts.
Functions of the skeletal system
-Provide support and structure for the body
-Protection of soft organs (skull, ribcage, vertebrae, etc.)
-Hemopoiesis
-Storage site for minerals
-Provide attachment site for muscles to aid in locomotion and leverage
axial skeleton
Bones in the main axis of the body. Bones of the skull, mandible, vertebrae, sternum, ribs,
and hyoid bone. Total of 80 bones.
, appendicular skeleton
Bones contained in the upper and lower extremities and the limb girdles (pectoral and pelvic
girdles). Total of 126 bones.
Pectoral girdle
scapula and clavicle
pelvic girdle
ilium, ischium, and pubis
long bones
(L>W) femur, humerus, radius, clavicle, phalanges
short bones
(L~W) most of the bones of the wrist (carpals) and ankle (tarsals).
flat bones
bones of the skull, ribs, sternum, scapula
irregular bones
vertebrae, calcaneus
sesamoid bones
bones that form within tendons - patella, pisiform
accessory bones
extra bones, usually from failure of two bones to fuse. Most common type are sutural bones.
minerals and collagenous material
Answers
agittal
Vertical plane passing through the body dividing it into unequal right and left parts.
Midsagittal
Vertical plane passing through the center of the body dividing it into equal right and left
halves.
Frontal/coronal
vertical plane passing through the body dividing it into anterior and posterior parts.
transverse/horizontal
perpendicular to the coronal and sagittal planes, cutting the body into superior and inferior
parts.
Functions of the skeletal system
-Provide support and structure for the body
-Protection of soft organs (skull, ribcage, vertebrae, etc.)
-Hemopoiesis
-Storage site for minerals
-Provide attachment site for muscles to aid in locomotion and leverage
axial skeleton
Bones in the main axis of the body. Bones of the skull, mandible, vertebrae, sternum, ribs,
and hyoid bone. Total of 80 bones.
, appendicular skeleton
Bones contained in the upper and lower extremities and the limb girdles (pectoral and pelvic
girdles). Total of 126 bones.
Pectoral girdle
scapula and clavicle
pelvic girdle
ilium, ischium, and pubis
long bones
(L>W) femur, humerus, radius, clavicle, phalanges
short bones
(L~W) most of the bones of the wrist (carpals) and ankle (tarsals).
flat bones
bones of the skull, ribs, sternum, scapula
irregular bones
vertebrae, calcaneus
sesamoid bones
bones that form within tendons - patella, pisiform
accessory bones
extra bones, usually from failure of two bones to fuse. Most common type are sutural bones.
minerals and collagenous material
