MEDICAL PHYSIOLOGY

Detailed explanation-1: -Stratum basale (innermost layer) Thus, a needle would pierce the forearm’s epidermal layers in the order: firstly, corneum, followed by granulosum, spinosum, and finally reaching the basale. Hence, this is the correct option.

Detailed explanation-2: -Answer and Explanation: A needle that pierces the epidermal layer of the forearm would pierce the following epidermal layers in order, C. Corneum, granulosum, spinosum, basale. The stratum corneum is the outermost layer of dead skin cells and option B is the only answer choice that begins with the stratum corneum.

Detailed explanation-3: -Answer and Explanation: A needle would pierce the epidermal layers of skin (the strata), from superficial to deep, in the order of stratum corneum (being the most superficial), stratum spinosum, stratum granulosum and stratum basale.

Detailed explanation-4: -The epidermal layers of the forearm would be pierced from the most superficial layer to the deepest layer, which would be in the order stratum corneum, stratum granulosum, stratum spinosum, and stratum basale.

Detailed explanation-5: -The epidermis consists of several layers beginning with the innermost (deepest) stratum basale (germinatum), followed by the stratum spinosum, stratum granulosum, stratum lucidum (when present), and ending with the outermost layer, the stratum corneum.