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Kim Ferguson

Physiology Week 5

QuestionAnswer
What is are the two types/functions of bone marrow? Red & yellow – produces red blood cells and stores energy as fat.
The external portion of the bone is known as Cortical bone
Bones grow due to activity in the Epiphyseal plates
Which of the following is NOT CONSIDERED a long bone. C5 Vertebral Body
When an astronaut is in space for 2 months what may happen to their bone density as compared to a person living on earth? The astronaut will experience bone loss at an increased rate as a person on earth
Why is cartilage slow to heal. Because it is semi-solid and flexible Because has a no or a limited blood supply Both B & C
Which of the following is a location in which you would find fibrous cartilage Public symphysis Interverbal discs Only C and D
Select the answer that best describes the axial skeletal structure. D) Provides framework for muscles that anchor and stabilize the appendicular bones
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 ________. make 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. The fontanelles are fibrous membranes.
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
Hematopoiesis is carried out in the: red bone marrow.
Which of the following is not dependent on the proper amount of calcium ions in the blood? Blood clotting Transmission of nerve impulses Contraction of cardiac muscle All of the above are dependent on the proper amount of calcium ions in the blood.
The primary ossification center of a long bone is located: in the diaphysis.
Bones grow in diameter by the combined action of which two of the three bone cell types? osteoblasts and osteoclasts
A person with a fractured patella would expect discomfort in the: knee.
The humerus articulates proximally with the scapula.
Before childbirth, the symphysis pubis softens. True
Calcification of the organic bone matrix occurs when complex calcium salts are deposited in the matrix.
During childbirth, a baby passes through an imaginary plane called the: pelvic outlet.
A condition that is caused by an abnormally increased roundness in the thoracic curvature is kyphosis.
Young children’s bones have a greater risk of fracturing because of incompletely ossified bone. False
Which of the following is not a characteristic of the epiphyses? Cylindrical in shape
In bone formation, the cells that produce the organic matrix are the: osteoblasts.
The cells responsible for active erosion of bone minerals are called: osteoclasts.
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
An age-related skeletal disease that is characterized by loss of bone mineral density and increased bone fragility is osteoporosis.
The humerus articulates proximally with the clavicle. False
Which of the following is not a characteristic of the diaphysis? Provides a bulbous shape for attachment of muscle
In the epiphyseal plate, the zone of hypertrophy is in the _____ layer. third
In bone growth, the medullary cavity is enlarged because of the activity of: osteoclasts.
Which of the following is not one of the primary functions performed by bones? Hormonal production
Small cells that synthesize and secrete a specialized organic matrix are osteoblasts.
Normally, bone loss will begin to exceed bone gain between the ages of _____ years. 35 and 40
In intramembranous ossification, the process of appositional growth refers to the: addition of an outside layer of osseous tissue on flat bones.
When the knee is flexed, the patella can be easily distinguished. False
Bones act as a reservoir for which of the following minerals? Calcium Phosphorus
An open fracture is also known as a compound fracture. True
The following are functions of bone except for support. protection. mineral storage. hematopoiesis. All of the above are functions of the bone
After the age of 50, the density of bone: decreases slowly because of a shift in the remodeling activity.
The ulna articulates proximally with the: humerus.
Created by: Kferguson76
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