Outer layer Stratified squamous epithelium

Nearer to the trunk of the body. The shoulder is proximal to the elbow.

paired structures = occur on both sides of a structure

mutually perpendicular perpendicular to midsagittal and coronal

Towards the back of the body. The heart lies posterior the sternum.

Furthest from the trunk of the body. The elbow is distal to the shoulder.

divides body into anterior and posterior halves

Thicker than epidermis Basal (deep) regenerative and pigmented connective tissue layer Consists of papillary and reticular regions

Away from the body surface

Towards the mid line of the body. The heart lies medial to the lungs.

Toward the front of the body. The sternum lies anterior to the heart.

parallel to midsagittal