The Brachial Plexus Nerve That Innervates the Flexor Muscles of the Arm

question 105

Multiple Choice

The brachial plexus nerve that innervates the flexor muscles of the arm and forearm and the skin on the lateral surface of the forearm is the ________ nerve.

• A) ulnar
• B) radial
• C) median
• D) axillary
• E) musculocutaneous

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Definitions:

Transfer RNA

A type of RNA molecule that helps decode a messenger RNA (mRNA) sequence into a protein during protein synthesis.

Amino Acids

Organic compounds containing amine (-NH2) and carboxyl (-COOH) functional groups, along with a side chain (R group) specific to each amino acid, the building blocks of proteins.

Ribosomes

Cellular structures where protein synthesis occurs, reading mRNA to assemble amino acids into polypeptide chains.

Nucleotides

The basic building blocks of DNA and RNA, consisting of a nitrogenous base, a sugar molecule, and a phosphate group.