The Digestive System, The Urinary System & The Skin
- 1.
Which of the following statements is NOT true of the digestive system?
- A.
Food passes through the pharynx, the larynx and the oesophagus
- B.
The ailimentary canal is also referred to as the gastrointestinal tract
- C.
The tongue is a part of the digestive system and is attached to its base by the hyoid bone
- D.
Accessory organs are those whose secretions pass through ducts into the ailimentary canal
Correct Answer
A. Food passes through the pharynx, the larynx and the oesophagusExplanation
Food does not pass through the larynx, which is used for generating sound, regulating temperature, providing a passageway for air and protecting the lower respiratory tract.Rate this question:
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- 2.
The molar and premolar teeth are used for cutting and biting food, whereas the canines and incisors are used for grinding and chewing food.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The opposite of this is true.Rate this question:
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- 3.
Which of these statements about the urinary system are true?
- A.
It is the main excretory system in the body
- B.
It includes two kidneys, which lie on the anterior abdominal wall, one each side of the vetebral column
- C.
The urinary system also includes a ureter which transports urine to the bladder
- D.
The kidneys help to control body water levels, create red blood cells and control blood pressure
Correct Answer(s)
A. It is the main excretory system in the body
D. The kidneys help to control body water levels, create red blood cells and control blood pressureExplanation
The kidneys lie on the POSTERIOR (not anterior) abdominal wall, and urine from the kidneys is transported by TWO ureters to the bladder.
The kidneys secrete urine to control water levels, produce enthropoeitin to help create red blood cells and secrete renin, an enzyme which controls blood pressure.Rate this question:
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- 4.
Which of the following statements about the skin is NOT true?
- A.
It protects underlying structures from injury and infection
- B.
It helps to regulate body temperature
- C.
It contains sensory nerve endings of pain, touch and temperature
- D.
It is non-continuous as its membranes do not line all of the body's orifices
Correct Answer
D. It is non-continuous as its membranes do not line all of the body's orificesExplanation
The skin does line all of the body's orifices and is therefore referred to as continuous.Rate this question:
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- 5.
Match the following statements to either epidermis or dermis. A - the outside layer of skin B - the layer of skin underneath the surface C - elastic and tough and formed from connective tissue D - directly above the subcutaneous tissue, which it touches E - its maintainence depends on the shedding and division of cells
- A.
Epidermis - A & C ....... Dermis - B, D & E
- B.
Epidermis - B, C & E ...... Dermis - A & D
- C.
Epidermis - A & E ...... Dermis - B, C & D
- D.
Epidermis - B & D ...... Dermis - A, C & E
Correct Answer
C. Epidermis - A & E ...... Dermis - B, C & DExplanation
The epidermis is the outside layer of the skin, which is represented by statement A. It is also mentioned that its maintenance depends on the shedding and division of cells, which is represented by statement E. On the other hand, the dermis is the layer of skin underneath the surface, represented by statement B. It is described as elastic and tough, formed from connective tissue, which is represented by statement C. Lastly, the dermis is directly above the subcutaneous tissue, which it touches, represented by statement D.Rate this question:
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