A & P 1 101 MODULE LAB 4 SKELETAL SYSTEM EXAM QUESTION AND ANSWERS – PORTAGE LEARNING LATEST UPDATE 2023 GRADED A+

A & P 1 101 MODULE LAB 4 SKELETAL SYSTEM
EXAM QUESTION AND ANSWERS – PORTAGE
LEARNING LATEST UPDATE 2023 GRADED A+
Axial Skeleton - correct answer-The axial skeleton is the part of the skeleton that
includes the bones of the head, neck, and trunk.
Appendicular Skeleton - correct answer-The appendicular skeleton is the part of the
skeleton that includes the bones of the upper and lower limbs, as well as the bones that
connect them to the axial skeleton.
Hyaline Cartilage - correct answer-Hyaline cartilage is a type of cartilage that is found in
many areas of the body, including the joints, the rib cage, and the nose. It provides a
smooth surface for bones to glide against each other and helps to absorb shock.
Fibrocartilage - correct answer-Fibrocartilage is a type of cartilage that is found in areas
of the body that need to withstand heavy pressure and tension, such as the
intervertebral discs and the knee joint. It contains both collagen fibers and
proteoglycans.
Elastic Cartilage - correct answer-Elastic cartilage is a type of cartilage that is found in
areas of the body that need to be flexible and able to return to their original shape, such
as the ears and the epiglottis.
Long Bones - correct answer-Long bones are bones that are longer than they are wide,
such as the femur, the humerus, and the phalanges.
Short Bones - correct answer-Short bones are bones that are approximately equal in
length, width, and thickness, such as the bones in the wrist and ankle.
Flat Bones - correct answer-Flat bones are bones that are thin and flat, such as the
bones of the skull and the scapula.
Sesamoid Bones - correct answer-Sesamoid bones are small bones that are embedded
within tendons, such as the patella (kneecap).
Irregular Bones - correct answer-Irregular bones are bones that do not fit into any of the
other categories, such as the vertebrae and the hip bones.
Compact Bone - correct answer-Compact bone is dense, hard bone tissue that forms
the outer layer of bones.
Spongy Bone - correct answer-Spongy bone is less dense bone tissue that is found
inside the outer layer of bones and contains spaces filled with bone marrow.
Epiphysis - correct answer-The epiphysis is the rounded end of a long bone that is
covered with cartilage and forms part of a joint.
Epiphyseal Line - correct answer-The epiphyseal line is a line of hyaline cartilage that
separates the epiphysis from the diaphysis of a long bone. It is present during childhood
and adolescence, but is replaced by bone tissue in adulthood.
Diaphysis - correct answer-The diaphysis is the long, cylindrical shaft of a long bone
that contains the bone marrow.
Medullary Cavity - correct answer-The medullary cavity is the central cavity of a long
bone that contains bone marrow.
Periosteum - correct answer-The periosteum is a tough, fibrous membrane that covers
the outer surface of bones and is important for bone growth, repair, and nutrition.
Haversian (Central) Canal - correct answer-The Haversian canal is a central channel
within compact bone that contains blood vessels and nerves.
Osteon - correct answer-An osteon is the basic unit of compact bone, consisting of a
central Haversian canal surrounded by concentric layers of bone tissue called lamellae.
Lamellae - correct answer-Lamellae are concentric layers of bone tissue that surround
the Haversian canal in compact bone.
Lacunae - correct answer-Lacunae are small spaces or cavities within bone tissue that
house osteocytes, the bone cells responsible for maintaining the surrounding bone
tissue.
Osteoblasts - correct answer-Osteoblasts are bone-forming cells that produce and
secrete the collagen and other components of the extracellular matrix that make up
bone tissue.
Osteocytes - correct answer-Osteocytes are mature bone cells that are embedded
within the lacunae of bone tissue. They play a critical role in maintaining the surrounding
bone tissue by regulating bone remodeling and responding to changes in mechanical
forces on the bone.
Cranial Bones - correct answer-The cranial bones are the bones that make up the skull.
Frontal bone - correct answer-The frontal bone is the bone that forms the forehead and
the upper part of the eye sockets.
Parietal bone - correct answer-The parietal bones are the two bones that form the top
and sides of the skull.