Question

which of the following components of the skin is the most superficial.○ papillary layer○ dermis○ reticular layer○ epidermis○ hypodermisquestion 4in the structure of a long bone, which of the following is composed of spongy bone?○ articular cartilage○ periosteum○ all of these○ diaphysis○ proximal and distal epiphysis

Explanation:

For the first question: The skin's layers from superficial to deep are Epidermis, Dermis (which includes the Papillary layer as its superficial part, then Reticular layer), and Hypodermis. The Epidermis is the outermost, most superficial layer.
For Question 4: The proximal and distal epiphyses (ends) of a long bone are filled with spongy bone, while the diaphysis (shaft) has compact bone, articular cartilage is connective tissue, and periosteum is a fibrous membrane covering the bone.

Answer:

1. Epidermis
2. Proximal and Distal Epiphysis