BSC 2085 Lab 3 – Cartilage, Bone, and Skull

Fill-in-the-blank flashcards covering key concepts of cartilage, bone tissue, skeletal structure, and skull anatomy from BSC 2085 Lab 3.

Cartilage is composed of cells called _ that reside in lacunae.

chondrocytes

Because cartilage is _ (lacking blood vessels), its regeneration is poor.

avascular

The type of cartilage depends on the kind and amount of _ in its matrix.

fibers

In _ cartilage the fibers are not visible microscopically.

hyaline

_ cartilage forms the embryonic skeleton and covers the ends of long bones.

Hyaline

Elastic cartilage contains many _ fibers, providing flexibility.

elastic

Elastic cartilage supports the external _ and the epiglottis.

ear

Fibrocartilage is characterized by thick _ fibers and few chondrocytes.

collagen

Intervertebral discs and the _ symphysis are composed of fibrocartilage.

pubic

Bone tissue contains cells called _ that occupy lacunae.

osteocytes

The functional unit of compact bone is the _ (Haversian system).

osteon

In an osteon, the central canal houses _ and nerves.

blood vessels

The concentric rings of bone matrix around the central canal are called _.

lamellae

Small channels that connect lacunae to each other and to the central canal are _.

canaliculi

The outer surface of every bone is covered by the _.

periosteum

Sharpey’s fibers are _ fibers that anchor tendons to the periosteum.

perforating

Perforating (_ ) canals allow blood vessels to enter and exit bone perpendicular to osteons.

Volkmann’s

The cavity within long bones that contains bone marrow is the _ cavity.

medullary

An adult human skeleton contains _ bones.

206

The axial skeleton contains _ bones.

80

Bones are connected to other bones by _

ligaments

Muscles attach to bones via connective tissue cords called _

tendons

A rounded articular surface that fits into a fossa is called a _.

condyle

A sharp, slender projection on a bone is termed a _.

spine

A canal-like passageway through bone is called a _.

meatus

The large opening at the base of the skull for the spinal cord is the _.

foramen magnum

The membrane-covered soft spots on an infant skull are called _.

fontanels

The _ bone, located below the mandible, does not articulate with any other bone.

hyoid

The anterior cranial fossa contains the crista galli and the _ plate of the ethmoid bone.

cribriform

The depression in the sphenoid bone that houses the pituitary gland is the _.

sella turcica

The middle cranial fossa includes openings such as the foramen ovale, spinosum, rotundum, and _.

lacerum

In the lateral skull view, the suture between parietal and occipital bones is the _ suture.

lambdoid

On the posterior skull, the bony prominence on the occipital bone is the external occipital _.

protuberance