While unloading the trunk of her car, Amy pulls a muscle. As a result, she has difficulty moving her arm. The attending physician in the emergency room tells her that she injured her latissimus dorsi muscle. Knowing that the latissimus dorsi was a back muscle, Amy doesn't understand what the muscle has to do with her injured arm. Explain the involvement of the muscle in Amy's injury.
What will be an ideal response?
Although the latissimus dorsi muscle is located across the back, it inserts on the humerus, the large bone of the upper arm. When the muscle contracts, it contributes to extension, adduction, and medial rotation of the humerus. All of these arm movements would be partially impaired if the muscle were damaged.
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a. peptide bonds b. ionic bonds c. hydrogen bonds d. electrolyte bonds
Matching
A) A B) B C) C D) D 22) Hypodermis. 23) Epidermis. 24) Reticular layer of the dermis. 25) Papillary layer of the dermis.
Match the substance necessary for clotting with its particular role.A. A mixture of lipoproteins released from injured tissueB. Converts prothrombin to thrombinC. The insoluble protein that forms the network of the clotD. Needed by the liver to produce prothrombinE. Fibrin-stabilizing factorTissue factor
Fill in the blank(s) with the appropriate word(s).
Calculate the weight of 1 mol of glucose. (The atomic weight of carbon = 12)
A) 29 grams B) 180 grams C) 12 grams D) 24 grams E) 120 grams