[Skeletal System] Skeletal Tissues: Bone structure & Histology

Question 1

2 parts of gross structure of long bones

Answer 1

Diaphysis & Epiphysis

Question 2

“Gross structure” meaning

Answer 2

Indicates no microscope; just what we can see

Question 3

Diaphysis

Answer 3

Shaft of long bones

Question 4

Epiphysis

Answer 4

Ends of long bones
-Filled w/ spongy bone & red marrow that makes RBC

Question 5

Hyaline Cartilage covers ends of _______________

Answer 5

…long bones and joints

Question 6

Periosteum

Answer 6

A sheath of connective tissue that lines the outside of bone

Question 7

Endosteum

Answer 7

Membrane lining inner part of the bone

Question 8

Medullary Cavity

Answer 8

The hollow area where yellow marrow is (red marrow for kids)

Question 9

Epiphyseal line/Growth plate

Answer 9

-Solid in adults
-Made of hyaline cartilage & allows long bones to get longer (kids)

Question 10

Long bones are the only types of bones that have ______________.

Answer 10

a center medullary cavity

Question 11

Most bones just have 2 layers, which are:

Answer 11

-Outer layer = compact bone
-Interior = spongy bone (filled w/ red marrow)

Question 12

Bone types:

Answer 12

Compact bone & Cancellous/spongy

Question 13

Compact bone

Answer 13

-Hard, strong, solid bone that forms outer layer of all bone
-Provides support, protection, and resists stress
-Primary support of all bone & contains osteons

Question 14

Cancellous/spongy bone

Answer 14

-Typically found at ends of long bone
-Typically fills entire interior of flat bones & vertebrae
-Open lattice (work of struts & plates that serves to store bone marrow

Question 15

(Cancellous/spongy bone) Trabeculae

Answer 15

Act as network of supporting beams to provide strength/support to bones