Nails
The tip of the nail is the
free edge
The largest organ in the body and the study of that organ
The skin and Dermatology
What is the function and location of Epithelial Tissue?
Function-Protection, Absorption, Filtration, secretion
Location-Body Coverings, body linings, Glands,
What is Muscle tissues main role?
Produce movement
What is connective tissues function and location?
Function-Binds body tissues together, supports the body, provides protection.
Location- Founds all throughout the body
The half moon shape at the base of the nail is the
Lunula
Name the three layers of the skin & their function
1. Epidermis-Protects your internal organs
2. Dermis-provides structural support and elasticity to the skin, regulates body temperature
3. Hypodermis-Attaches skin to body
Explain simple and stratified epithelium tissue
Simple epithelium- One cell layer thick
Stratified epithelium- more than one layer thick
What are the three types of muscle tissues and their functions?
Skeletal-contracts to pull on bones, produces facial expressions
Cardiac-Only found in heart to help pump blood
Smooth- controls movement in the stomach and uterus
What are examples of dense regular and dense irregular tissue, and what are they primarily made of?
Dense regular- Ligaments and tendons, stronger
Dense Irregular- Dermis, resist forces from multiple directions
Made of collagen fiber
The pink part of the nail is the what and is made of what?
Nail Body and Keratin
The most superficial and deepest layers of skin and their functions.
Deepest- Stratum Basale and it produces melanin and keratin.
Superficial- Stratum Corneum and it sheds dead skin away.
What are the three shapes of epithelia tissue
Squamous Epithelium- Flattened cells
Cuboidal Epithelium- Cube-shaped
Columnar Epithelium- Column-like, tall cells
How many kinds of nervous tissue are there and what do they look like?
There's only ONE type and it's big and dark in diameter
What are the 5 types of connective tissues?
1. Adipose (fat)
2. Cartilages (Hyaline & Elastic)
3. Bone
4. Blood
5. Dense (Regular & Irregular)
What is the main purpose of the nail
Protects ends of fingers and toes
The middle three skin layers and their function
2. Stratum Lucidum- Protects from UV Light (Only found in palms and Soles)
3. Stratum Granulosum-Cells begin to die
4. Stratum Spinosum- Alerts to the invasion of pathogens.
Explain Simple Cuboidal and Simple Columnar
Simple Cuboidal- One layer of cube-shaped cells
Simple Columnar- One layer of tall/long cells
What do the muscle tissues look like?
Skeletal- Solid fiber, faint striations, long nucleus
Cardiac- Dark striations, long-horizontal nucleus
Smooth- fibers all going the same way, no visible striations
What is Bone and Blood tissue's function and whats it look like?
Blood- transports materials, looks like a bunch of circles flowing around
Bone- supports and protects the body, looks like a tree pattern
What keeps the nail attached to the finger
Nail root
What is the ABCD Rule?
A- Asymmetry- two sides of mole doesn't match
B- Border irregularity- borders of mole are not smooth
C- Color- Different colors in pigmented area
D- Diameter- Spot is larger than 6mm in diameter
Explain Pseudostratified Columnar and Stratified Squamous function and shape
Pseudostratified Columnar- THEY HAVE CILIA ATTACHED (small grass-looking stuff) May function in absorption and secretion
Stratified Squamous- Cells are very small and there are a lot of them. May function in protecting where friction is common.
Where is Nervous tissue located, and what's its function?
Location- Brain, spinal cord, nerves throughout the body.
Function- Send impulses throughout the body
What are the types of cartilages and their function and how do they look?
Hyaline- more common, facilitates movement, absorbs shock, looks like raindrops
Elastic- supports and flexibility, looks very dark black/purple,