Integumentary 1
Name the three types of epithelial tissue membranes.
Cutaneous Membrane
Mucous Membranes
Serous Membranes
What are fingernails?
a modification of the epidermis
Hair consists of tightly packed ___________
keratinocytes
How many bones are in the human body?
206
Define ossification.
Bone formation
Name the two primary layers of the skin
Dermis and epidermis
compare 1 mm threshold to 5 mm threshold.
What does it tell you about the touch receptors in the two locations?
There is a higher density of touch receptors in the 1mm threshold than in the 5 mm threshold.
______________ provide pigment for hair color
Melanocytes
5 functions of the skeletal system.
Support, protection, storage, movement, hematopoiesis
Name of the main mineral stored in bones.
Calcium
________ pericardium lines the mediastinum (cavity)
Parietal
Types of skin damage
Mechanical damage such as bumps
Chemical damage such as exposure to acids and bases
Bacterial damage
Desiccation or drying out
What structure protects skin from UV radiation?
Hair
Two divisions of the skeleton.
axial and appendicular
Blood cell formation in bone marrow
hematopoiesis
___________ pericardium covers the heart.
visceral
What all determines skin color?
The amount & kind of melanin
Carotene
Hemoglobin
Name the connective tissue membrane that lines joint cavities.
Synovial membranes
List the three types of ribs.
True ribs, false ribs, floating ribs
What is the most serious threat to life from a massive third-degree burn?
Infection
Hair grows from root in the ______
hair follicle
What happens to skin as people age?
Skin becomes thin and dry
· Loses elasticity
· Less subcutaneous fat
· Hair loss occurs
· Hair loses color
List the three types of joints.
Fibrous – no movement, ex: skull
Cartilaginous – slightly moveable, ex: pubic symphysis, vertebrae
Synovial – bones separated by cavity filled with synovial fluid, allow the most movement