Skintimate
Dermis
Skin Accessories
No Bones about it!
Ossification
Final Jeopardy
100

A needle would pierce the epidermal layers of the forearm in which order?

corneum, granulosum, spinosum, basale

100

Name the two major layers of the dermis

Reticular layer, Papillary layer

100

This gland produces earwax.

Ceruminous gland

100

Yellow bone marrow contains a large percentage of ________.

Fat

100

_____ is the process of bone formation.

Ossification (Osteogenesis)

100

Which structure most directly provides nutrients and removes wastes from osteocytes in compact bone.

Canaliculi

200

This epidermal cell helps to activate the immune system.

dendritic cells

200

The reason the hypodermis acts as a shock absorber is that the major part of its makeup is _____.

adipose

200

The major regions of a hair shaft include these three layers.

Medulla, cortex, cuticle

200

The cell responsible for secreting the matrix of bone is the ________.

osteoblast

200

The process of bones increasing in thickness is known as ________.

appositional growth

300

This layer is responsible for cell division and replacement.

stratum basale

300

This dermal layer is made up mostly of areolar CT

papillary layer

300

Sudoriferous glands are categorized as two distinct types.  What are those types?

eccrine, apocrine sweat glands

300

This _____ is the structural unit of compact bone.

Osteon.

300

This structure allows the diaphysis of the bone to increase in length until early childhood.

epiphyseal plate

400

Prolonged exposure to the sun induces the dispersion of this which in turn acts as a natural sunscreen.

melanin

400

Friction ridges are the result of these.

Dermal papillae laying on top of dermal ridges

400

Hair pigments are made by ____ in hair follicles.

Melanocytes

400

Which hormone increases osteoclast activity to release more calcium ions into the bloodstream?

PTH, parathyroid hormone

400

Ossification of the ends of long bones is produced by _____ ossification centers.

secondary

500

One function of the skin is that it converts modified epidermal cholesterol into a _____ precursor important to calcium metabolism.

vitamin D

500

This touch receptor is found in dermal papillae

Meissner’s corpuscles/tactile corpuscles

500

_____: nail fold that projects onto surface of nail body

Eponychium/cuticle

500

What is a bone marking name that indicates an armlike bar of bone?

Ramus

500

This tissue forms the model for endochondrial ossification.

Cartilage