Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Physiology
Week 5 Chapters 11, 12, & 13
| Question | Answer |
|---|---|
| Why is cartilage slow to heal? | because it is semi-solid and flexible and because it does not have a blood supply |
| Why are osteocytes spread out in bone tissue? | Formation of osteoid spreads out the osteoblasts that formed the ossification centers. |
| Which of the following bones is (are) formed by intramembranous ossification? | the flat bones of the cranium |
| Bones grow in length due to activity in the ________. | epiphyseal plate |
| Bones grow in diameter due to bone formation ________ | In the endosteum or periosteum |
| Which of the following represents the correct sequence of zones in the epiphyseal plate? | calcification, maturation, proliferation, reserved |
| In endochondral ossification, what happens to the chondrocytes? | They die in the calcified matrix that surrounds them and form the medullary cavity. |
| Select the answer that best describes the axial skeletal structure. | Supports and protects organs, Provides framework for muscles that adjust positions of neck , head, and trunk ; Provides framework for muscles that perform respiratory movements , and Provides framework for muscles that anchor and stabilize the append |
| Adipocytes, found in the yellow bone marrow, stores and releases ____________________________ for energy. | fat and triglycerides |
| Which function of the skeletal system would be especially important if you were in a car accident? | protection of internal organs |
| Without red bone marrow, bones would not be able to ________. | male blood cells |
| Which of the following provide flexibility and smooth surfaces for movement? | Cartilages |
| The fontenelles of an infant's skull consists of | fibrous membrane |
| Which statement below is correct regarding fontanelles? | The anterior and posterior fontanelles allow for overlaping of skull bones to decrease the diamiter of the fetal head at birth, Allows for brain growth, The anterior fontanelle closes at about 2 years of age, and The fontanelles are fibrous membra |
| Hematopoietic stem cells that are found in red bone marrow can develop into a variety of different blood cells, including red blood cells, white blood cells, and platelets. | true |
| A person with a fractured patella would expect discomfort in the: | knee |
| The ulna articulates proximally with the: | humerus. |
| Which of the following is not one of the primary functions performed by bones? | Hormonal production |
| The humerus articulates proximally with the clavicle. | false |
| Because of how the clavicle articulates with the scapula, all shoulder movements involve the sternoclavicular joint. | true |
| Calcification of the organic bone matrix occurs when | complex calcium salts are deposited in the matrix. |
| In bone growth, the medullary cavity is enlarged because of the activity of: | osteoclasts |
| An open fracture is also known as a compound fracture. | true |
| Which of the following may cause skeletal variations? | Inadequate supply of calcium and vitamin D, Mechanical stress , and age |
| The cells responsible for active erosion of bone minerals are called: | osteoclasts. |
| Appositional growth of cartilage occurs when chondrocytes begin to divide and secrete | additional matrix. |
| The humerus articulates proximally with the | scapula. |
| Which of the following is not dependent on the proper amount of calcium ions in the blood? | Blood clotting , Transmission of nerve impulses, and Contraction of cardiac muscle |
| Small cells that synthesize and secrete a specialized organic matrix are | osteoblasts. |
| During childbirth, a baby passes through an imaginary plane called the: | pelvic outlet. |
| Which of the following is not a characteristic of the epiphyses? | Cylindrical in shape |
| When the knee is flexed, the patella can be easily distinguished. | false |
| An age-related skeletal disease that is characterized by loss of bone mineral density and increased bone fragility is | osteoporosis. |
| Before childbirth, the symphysis pubis softens. | true |
| The following are functions of bone except for | support, protection, mineral storage, and hematopoiesis. |
| Young children’s bones have a greater risk of fracturing because of incompletely ossified bone. | false |
| The cell organelles that synthesize organic matrix substances in bone formation are: | endoplasmic reticulum and Golgi apparatus. |
| As the activity of osteoblasts increases, the: | amount of calcium in bone increases and level of calcium in the blood decreases. |
| Normally, bone loss will begin to exceed bone gain between the ages of _____ years. | 35 and 40 |
| One similarity between the structures of the foot and hand is the equivalent degrees of movement of both the thumb and the big toe. | false |
| Hematopoiesis is carried out in the: | red bone marrow. |
| Bones grow in diameter by the combined action of which two of the three bone cell types? | osteoblasts and osteoclasts |
| Blood calcium levels involve secretion of which two hormones? | parathyroid and calcitonin |
| Which structures are unique to the fetal skull and provide additional space for molding the head shape as the baby passes through the birth canal? | fontanels |
| In intramembranous ossification, the process of appositional growth refers to the: | addition of an outside layer of osseous tissue on flat bones. |
Created by:
ashleysummers
Popular Science sets