Anatomy Questions

Sebum contains a _, meant to specifically kill off bacteria.

Hair is made primarily of hardened _ in concentric circles.

Sebaceous glands secrete _ into the hair follicle for lubrication of the hair and skin.

A protein called _ kills off many structures such as bacteria found in the skin and is found in the sweat.

keratinocytes are completely dead, can be sloughed off

Sweat is slightly _ because it contains some of the wastes of metabolism.

Areolar connective tissue is comprised of substances including these fibers: _ for strength and _ for flexibility

is the first system of the body traditionally covered in A&P, and the term is literally translated as "covering"

Skin in hairless parts of the body is 1.5 mm thick, but is thicker, up to _ thick, in skin such as the palms and soles.

Skin weighs _ to _ lbs and takes up 7% of your body weight.

Sternoclavicular joint: only bony connection between appendicular and axial skeletonSaddle joint (multiaxial)Movement of the clavicle relative to sternum in shoulder girdle ab/adduction and elevation/depression (肩胛骨)eg: 挺胸、驼背

I: behind the acromion on this image, on corrocoid process, abduction and downward rotation

1. Superior angle2. Spine of the scapula3. Coracoid process4. Acromion Process5. Glenoid fossa6. inferior angle

Upper fibres: adduction, elevation, upward rotationMiddle fibres: adduction, upward rotationLower fibres:adduction, depression, upward rotation

What does middle trapezius attached to? and what movement does lower and middle trapezius contribute to?

Blue is triceps brachii long head, purple is biceps brachii long head and short head

O: C7 to T5 spinous processI: the rest of the border on the medial border of the scapula

supports the weight of the head and point of attachment for some muscles

O: occipital bone and nuchal ligamentI: lateral third of the clavicle

Posterior: trapezius, rhomboids and levator scapulaeAnterior: pectoralis minor, serratus anterior