Unit 8A - Skeletal Phys (TEST)_(ANSWERS)

.pdf

School

Eastern Connecticut State University *

*We aren’t endorsed by this school

Course

SHB805

Subject

Biology

Date

Feb 20, 2024

Type

pdf

Pages

Uploaded by jacobsm007

Name: ANSWER KEY Channel: Unit 8A - Skeletal Physiology - TEST Your Answer: DIRECTIONS (Multiple Choice): choose the answer or statement that best completes the question A 1. The articular ends of long bones are composed of ___ tissue. A. hyaline C. hematopoietic B. fibrous D. osseous C 2. The ___ contain enzymes capable of breaking down the calcium matrix of bone tissue. A. osteoblasts C. osteoclasts B. osteocytes D. Osteogenic cells E 3. In an osteon, bone cells are arranged in concentric circles around the central longitudinal tubes called ___ . A. canaliculi D. marrow cavity B. lacunae E. Haversian canals C. Volkmann’s canals C 4. Which structure is contained within the lacuna of the living bone? A. Ca +2 salts D. matrix B. chondrocytes E. simple squamous epithelium C. osteocytes A 5. The cell type that is responsible for basic bone formation is the ___ . A. osteoblast D. osteoclast B. fibroblast E. osteocyte C. chondrocyte B 6. The ___ surrounds the shaft of the bone and allows it to increase in diameter during periods of growth. A. diaphysis C. endosteum B. periosteum D. epiphysis

D 7. Ligaments join ___ to bone at joints. A. nerves C. marrow B. muscles D. bone D 8. Among other functions of bones, they store ___ and ___ . A. carbohydrates; fat C. proteins; carbohydrates B. water; minerals D. minerals; fats B 9. Bones have to be physically ___ to remain healthy; this means being active through exercise that keeps the body moving for an extended period of time. A. overstressed C. ignored B. stressed D. inactive D 10. Twiddling your thumbs utilizes which type of joint? A. ball and socket C. gliding B. fixed D. saddle B 11. What type of bone is the primary source of red marrow/blood formation in an adult? A. irregular C. short B. flat D. long Your Answer: DIRECTIONS (True/False): choose the answer or statement that best completes the question - write “A” for “True” and “B” for “False” A 12. Bone consists of several tissues including cartilage and blood, therefore it is considered an organ. A. True B. False B 13. Although bones of an elderly person represent dead tissues, they still perform the functions of protection and support. A. True B. False B 14. The more collagen a bone has, the more rigid it is. A. True B. False A 15. Most of the skeleton in the developing embryo is composed of cartilage. A. True B. False B 16. Primary ossification centers of long bones begin in the epiphyses. A. True B. False

B 17. The presence of an epiphyseal plate that is not ossified on an x-ray indicates that growth has probably stopped in the person. A. True B. False A 18. Active exercise can actually cause an increase in the mass and strength of a bone. A. True B. False A 19. Yellow bone marrow has lost its hematopoietic ability. A. True B. False B 20. A low level of blood calcium could be the cause that increases the activity of the osteoclasts. A. True B. False Your Answer: DIRECTIONS (Labeling): looking at the image supplied, the types of bone shapes that are indicated by the examples. flat bones 21. irregular bones 22. sesamoid bones 23. long bones 24. Short bones 25.

Your preview ends here

Eager to read complete document? Join bartleby learn and gain access to the full version