What is responsible to move the blood supply from the feet toward the inferior vena cava?
Thigh muscles
Arterial pulsations
Venous flow
Calf muscles
The Correct Answer is D
A. Thigh muscles: While thigh muscles assist in venous return, they are not as critical as the calf muscles in moving blood from the feet.
B. Arterial pulsations: Arterial pulsations help in the forward movement of blood in the arteries but do not directly assist with venous return from the feet.
C. Venous flow: Venous flow is the general term for blood movement in veins, but it does not specify the mechanism responsible for moving blood from the feet.
D. Calf muscles: The calf muscles, through their contraction (often referred to as the "muscle pump"), are crucial in helping to push blood upwards from the feet towards the inferior vena cava. This mechanism is essential for effective venous return.
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Related Questions
Correct Answer is D
Explanation
A. Thigh muscles: While thigh muscles assist in venous return, they are not as critical as the calf muscles in moving blood from the feet.
B. Arterial pulsations: Arterial pulsations help in the forward movement of blood in the arteries but do not directly assist with venous return from the feet.
C. Venous flow: Venous flow is the general term for blood movement in veins, but it does not specify the mechanism responsible for moving blood from the feet.
D. Calf muscles: The calf muscles, through their contraction (often referred to as the "muscle pump"), are crucial in helping to push blood upwards from the feet towards the inferior vena cava. This mechanism is essential for effective venous return.
Correct Answer is A
Explanation
A. Stress incontinence: This occurs when urine leaks due to increased abdominal pressure from activities like coughing or laughing, indicating a weakness in the pelvic floor muscles.
B. Obstructive incontinence: This is not a recognized type of urinary incontinence; it may refer to urinary obstruction issues, which are different from stress incontinence.
C. Overflow incontinence: This involves leakage due to an overfilled bladder and is not typically related to activities that increase abdominal pressure.
D. Urge incontinence: This involves a sudden, intense urge to urinate and may lead to involuntary leakage, but it is not specifically linked to coughing or laughing.
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