The Matrix Is:
A)A 4 $\times$ 2 Matrix
B)A Square Matrix
C)A 2

question 18

Multiple Choice

The matrix is:

• A)A 4 \(\times\) 2 matrix
• B)A square matrix
• C)A 2 \(\times\) 4 matrix
• D)An identity matrix

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Definitions:

Detrusor Muscle

A muscle of the urinary bladder wall that contracts during urination to release urine.

Internal Sphincter

A muscle that helps control the passage of substances and is not under voluntary control, such as the internal anal sphincter controlling the release of feces.

Urinary Retention

A medical condition characterized by the inability to completely empty the bladder, leading to discomfort and potentially serious health issues.

Diphenhydramine

An antihistamine drug used to relieve symptoms of allergy, hay fever, and the common cold, as well as for inducing sleep.