CH1 Flashcards
Structural Organization of the Body: Chemical level
Smallest Level Atom and molecules
Structural Organization of the Body: Cellular level
Cells: the basic unit of structure and function
Structural Organization of the Body Tissue level (TEST) 4 Types
Group of cells Four Types 1) Epithelial 2) connective 3) muscle 4)nervous
Structural Organization of the Body: Organ level
Groups of 2 or more tissue types
Structural Organization of the Body: Organ system level
related organs; Perform specific function i.e.. Respiratory system
Structural Organization of the Body: Organismal level
Whole organism is human
What are the different Levels of structure and the order smallest to biggest
1) Chemical 2) Cellular 3) Tissue 4) Organ 5) Organ System 6) Organismal
What are the 6 characteristics of living things
1) Organization 2)Metabolism 3)Growth and Development 4) Responsiveness(irritability) 5) Regulation 6) Reproduction
Metabolism
Sum of all chemical reaction in a body
Anabolic reaction
Build Things
Catabolic reaction
Break down things
Growth Vs Development
Growth - things get bigger vs development things become more advanced
Regulation examples
Body temp and Blood Pressure
11 Major Organ Systems of the Body
1)Integumentary System 2)Skeletal System 3) Muscular System 4)Nervous System 5)Endocrine System 6)Cardiovascular System 7)Lymphatic System 8) Respiratory System 9)Digestive System 10)Urinary System 11)Reproductive System
Integumentary System Function and Key Organs
Provides protection and regulates body with Skin/Hair/nails
Skeletal System Function and Key Organs
Provides support and protection with the 206 Bones
Muscular System Function and Key Organs
Produces body movement with muscles
Nervous System Function and Key Organs
Communication through electrical signals helps control other systems Brain spinal cord
Lymphatic System Function and Key Organs
Initiates an immune response to fight infection: Spleen/Thymus/Lymph Nodes
Endocrine System Function and Key Organs
Consists of glands and cell clusters that secrete hormones. Ovaries/Testes/Thymus/Thyroid/Adrenal/Pancreas/Kidney/Pineal body/Pituitary
Cardiovascular System Function and Key Organs
Consists of the heart (a pump); blood; and Blood vessels to transport hones nutrients and pick up waste
Respiratory System Function and Key Organs
Responsible for exchange of gases (oxygen and carbon dioxide) between blood and the air in the lungs. Lungs Larynx
Digestive System Function and Key Organs
Mechanically and chemically digests food materials to absorb nutrients. GI Track; colon; Liver; Gallbladder
What organ is the Accessory digestive to the liver(test)
Gallbladder: The liver secretes bile into the small intestine via the bile duct employing the gallbladder as a reservoir
Urinary System Function and Key Organs
Filters the blood and removes waste products from the blood. Kidney and urinary bladder
Sections and Direction
Longitudinal (up and down) and Cross (X section) (Horizontal)
4 Different Planes
1) Sagittal 2) Coronal 3) Transverse 4) Oblique
Sagittal Plane sagittow = arrow
Extends through the body or organ vertically and divides the structure into right and left halves
Coronal plane( korone = crown)
Also called Frontal plane; is a vertical plane that divides the body into anterior (front) and posterior (back) parts
Transverse plane
Also called a cross-sectional plane or horizontal plane; cuts perpendicularly along the long axis of the body or organ.
Oblique (ob-lek?)Plane
Pass through the specimen at an angle.
Anterior
In front of; toward the front surface The stomach is anterior to the spinal cord.
Posterior
In back of; toward the back surface The heart is posterior to the sternum.
Dorsal
At the back side of the human body The spinal cord is on the dorsal side of the body.
Ventral
At the belly side of the human body The umbilicus (navel; belly button) is on the ventral side of the body.
Superior
Closer to the head The chest is superior to the pelvis.
Inferior
Closer to the feet The stomach is inferior to the heart.
Caudal
At the rear or tail end The abdomen is caudal to the head.
Cranial
At the head end The head is cranial to the trunk.
Medial
Toward the midline of the body The lungs are medial to the shoulders.
Lateral
Away from the midline of the body The arms are lateral to the heart.
Deep
On the inside; underneath another structure Muscles are deep to the skin.
Superficial
On the outside The external edge of the kidney is superficial cial to its internal structure
Proximal
Closest to point of attachment to trunk The elbow is proximal to the hand.
Distal
Furthest from point of attachment to trunk The wrist is distal to the elbow.
Axial (ak?se-a?l) region
Includes the head; neck; and trunk; it forms the main vertical axis of the body
Appendicular (ap?en-dik?u -lar? )Region. TEST
Our limbs; or appendages; attach to the body’s axis and make up the appendicular (ap?en-dik?u -lar? ) region (INCLUDING Hips and Shoulders)