Tissues and Joints Flashcards
4 basic tissues that comprise the human body
MENC
Muscular
Epithelial
Nervous
Connective
Epithelial tissue
found in 3 areas of the body
EEI
- External (sheets of tissue that cover the skin)
- Exterior - Lining of tubes and passages that lead to the exterior body (e.g. external auditory meatus)
- Interior - Lining of the internal body cavities (e.g. oral cavity + ear canal)
What are the two purposes of epithelial tissue?
LINE cavities (internal) and COVER organs (external)
PASS
protection, absorption, secretion, sensation
- Externally - protective covering for surface of body - subject to abrasion and drying
- Internally - forms a smooth surface in body cavities so that structures can glide without tearing and shearing
What are the 3 types of epithelial tissue?
PEM.
Proper, Endo, Meso
- Epithelial Tissue Proper (epidermis + internal membranes cont with skin)
- Endothelial Tissue (inner; blood and lymph vessels)
- Mesothelial Tissue (deeper - lining abs, chest, heart cavities)
Epithelial Tissue Proper
Forms the epidermis (outer layer of skin) and the internal membranes that are continuous with the skin (e.g. mucous membranes that line the resp tract)
Endothelial Tissue
Forms the inner lining of the walls of the blood and lymph vessels. It is not continuous with the epidermis
Mesothelial Tissue
Lines 3 cavities:
- Peritoneal Cavity (abdomen)
- Thoraci or Pleural Cavity (chest and lungs)
- Pericardial Cavity (heart)
What is the function of connective tissue?
Connects structures of the body, provides support for the body, and aids in bodily maintenance
- connects structures
- support
- defense
- transports and binds
Categories of connective tissue
LSD
- Loose connective tissue (support and movement)
- Special connective tissue (support structures)
- Dense connective tissue (support, protects, holds together)
What are the types of loose connective tissue?
- Adipose tissue - Fat. Found just below the epidermis
- Areolar Tissue -
very loose tissue
lies deep to the epidermis
is found most everywhere in the body
It cushions muscles and other organs
What is the function of loose connective tissue?
- Supports bodily structures
- permits movement
Dense connective tissue
These are closely packed fibers that are classified in 1 of 2 ways:
- White fibrous tissue - NOT ELASTIC white and unyielding in nature, meaning that it is resistant to stretching
- yellow elastic tissue - ELASTIC fibers may be stretched
Where can dense connective tissue be found?
TALF
- Tendons
- Aponeuroses
- ligaments
- fascia
Tendons
Always associated with muscle
defined as nonelastic cords that are comprised of many parallel fibers
attach muscle to bone or cartilage, muscle to muscle
Aponeuroses
Broad and flat tendonous sheets
cover muscles and PERMITS muscles to attach to bone
Ligaments
always associated with cartilage and bone. They are NOT associated with muscle
They connect bone to bone/cartilage ,cartilage to cartilage
Fascia
THIN sheet of fibrous tissue that surrounds muscles and other organs.
It also separates different layers of tissue
Where is fascia located?
Deep to the epidermis
provides structural support and protection
is basically responsible for holding your body together
Special Connective Tissue
BC
Bone
Cartilage
serves to support structures
Cartilage
connective tissue capable of withstanding force
can tear easily
At birth, the body is comprised primarily of cartilage that becomes bone over time
In adults, cartilage forms the framework for what structures important for speech?
LTB
larynx, trachea, and bronchi
What are the cartilages that make up the larynx?
from superior to inferior
EveryoneTriesChildAfterCare
epiglottis
thyroid cartilage
corniculate cartilage
arytenoid cartilages
cricoid cartilage