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The

is not a portion of the urethra.
Answer and Explanation

The Correct Answer is {"dropdown-group-1":"B"}

A. External urethral orifice: This is the external opening of the urethra, and part of the urethral passageway.
B. Internal urethral sphincter: This is a muscular structure that regulates flow, but it is not a section of the urethral tube itself.
C. Prostatic urethra: This is the part of the male urethra that passes through the prostate gland.
D. Membranous urethra: This portion passes through the urogenital diaphragm in males.
E. Spongy urethra: The longest segment of the male urethra, it runs through the penile (spongy) tissue.


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Related Questions

Correct Answer is B

Explanation

A. Terminal sulcus: This is a V-shaped groove on the tongue that marks the division between the anterior and posterior tongue-not related to tongue mobility.
B. Lingual frenulum: This is a fold of mucous membrane under the tongue that may be too short or tight in some children (ankyloglossia or “tongue-tie”), limiting movement. Surgery may involve cutting this to free the tongue.
C. Uvula: The uvula is part of the soft palate and plays a role in speech and swallowing, not tongue movement.
D. Palatine tonsils: These are lymphatic tissues in the oropharynx and have no role in tongue movement.

Correct Answer is B

Explanation

A. Intracellular fluid: Intracellular fluid is inside the cells. Edema refers to fluid accumulation outside the cells, so this is incorrect.
B. Interstitial fluid: Edema is caused by the abnormal accumulation of fluid in the interstitial space, which is the space between cells in tissues.
C. Intracellular fluid and interstitial fluid: Edema is confined to the interstitial (extracellular) compartment, not intracellular.
D. Blood plasma: Although fluid may move from the plasma into the interstitial space, edema refers to fluid retention in tissues, not in the blood plasma.

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