Cardiac muscle differs from the other two types of muscle tissue in that cardiac
ID: 3165636 • Letter: C
Question
Cardiac muscle differs from the other two types of muscle tissue in that cardiac musvle A. Has visible striations B. Has only one nucleus per cell C. Has the ability to contract independent of neural stimulation D. Contains actin and myosin filaments E. Forms muscle fibers 28. The most abundant cells in the epidermis are A. Adipocytes B. Keratinocytes C. Merkel cells D. Melanocytes E. Langerhans cells 29. 30. The highest concentration of merocrine sweat glands would be found A. In the axillae B. On the chest C. On the plams of the hands D. On the upper back E. Surrounding the genitals 31. Charlie is badly burned in an accident with fireworks on the Fourth of July. When he reaches the emergency room, the examining physician finds that he car remove entire hair follicles from Charlie's arm when he gently pulls on a hair with his forceps. Charlie is suffering from a A. First degree burn B. Second degree burn C. Third degree burn D. Partial thickness burn E. Epidermal burnExplanation / Answer
28. The answer is (B) Has only one nucleus per cell
The other two muscle types typically contain many nuclei. Rest all the properties mentioned in the options are similar in all the three muscle types.
29.The answer is (B) Keratinocytes
Keratinocytes constitute 95% of the epidermis, melanocytes, Merkel cells, Langerhans cells being the other type of cells present.Adipocytes are present in the hypodermis.
30. The answer is (C) on the palms of the hands.
Eccrine/Merocrine sweat glands are found in the highest densities in the palms and soles, much less on the trunk and the extremities.
31.Charlie is suffering from (A) First-degree burn or (E) Epidermal burn which involves the epidermis.
Second and third-degree burns affect the deeper tissues of the skin respectively.