Chapter 1: Intro to Anatomy Flashcards
Subdivisions
Gross Anatomy
the study of the body with the unaided eye.
Observations made without a microscope
Subdivisions
Microscopic/Histology Anatomy
the study of the body with aide of a microscope
Micro = Tissue Cyto = Cell Ology = study of
Subdivisions
Systemic Anatomy
study of individual organs and systems
Ex: Digestive System and Respiratory System
Subdivisions
Regional Anatomy
the study of some particular body region as a seperate unit
Ex: study of head or chest area
Subdivisions
Topographical (Surface) Anatomy
the study of surface shape and form of the human body, and the ability to use this knowledge of surface form to locate underlying structures
Subdivisions
Developmental/Embryology Anatomy
the study of the body before birth, fromits earliest beginnings as a fertilized egg until time of birth
Subdivisions
Pathological/Human Pathology Anatomy
the study of structural and functional changes which occur in the body a a result of disease
Subdivisions
Human Physiology Anatomy
the study of function of the body and its parts
Subdivision: Gross Anatomy
Section 1
- Cranium: dome of skull
- Face
1. Oral/Buccal (Mouth)
2. Nasal Cavity
3. Orbital Cavities (Eye Sockets)
Subdivision: Gross Anatomy
Section 2
Neck and Cervical Region
Subdivision: Gross Anatomy
Section 3
Trunk/Torso
1. Thorax
2. Abdomen
3. Pelvis
Subdivision: Gross Anatomy
Section 4
Upper Extermities
1. Arms
2. Pectoral Girdle
* Shoulder Blades
* Collar Bones
Subdivisions: Gross Anatomy
Section 5
Lower Extermities
1. Legs
2. Pelvis Girdle
* Hip Bones
Gross Anatomy: Body Cavities
Dorsal Cavity
the main body cavity. Made up of the cranial cavity within the skull containing the brain, and the spinal cavity within the vertebral column, containing the spinal cord.
Gross Anatomy: Body Cavities
Ventral Cavity
the large cavity contained within the trunk of the body. It contains many subdivisions.
1. Thoracic Cavity
* Pleural Cavities
* Pericardial Cavity
* Mediastinal Cavity (Mediastinum)
2. Abdominopelvic Cavity
* Abdominal Cavity
* Pelvic Cavity
Gross Anatomy: Ventral Cavity Subdivisions
Thoracic Cavity
the upper part of the torso/trunk, within the chest area. Includes the pleural cavities, pericardial cavity, and the mediastinal cavity (mediastinum)
Ventral Cavity: Thoracic Cavity
Pleural Cavities
the spaces around the lungs, between the two layers of pleura, which are serous membranes covering over each lung
Ventral Cavity: Thoracic Cavity
Pericardial Cavity
the space around the heart, between the two layers of pericardium, which is a “sac-like” structure covering the heart
Ventral Cavity: Thoracic Cavity
Mediastinal Cavity (Mediastinum)
the area in the center of the thorax, from the base of the neck to the diaphram, and inbetween the lungs
Body Cavties: Ventral Cavities Subdivisions
Abdominopelvic Cavity
the part of the ventral cavity below the diaphragm. Although, no wall seperates the two this cavity also includes the abdominal cavity and pelvic cavity, and the peritoneal cavity
Ventral Cavity: Abdominopelvic Cavity
Abdominal Cavity
the upper part of the abdominopelvic cavity, below the diaphragm and down to approximately the top of the hip bones
Ventral Cavity: Abdominopelvic Cavity
Pelvic Cavity
the lower part of the abdominopelvic cavity, contained within the pelvis
Ventral Cavity: Abdominopelvic Cavity
Peritoneal Cavity
a two layered serous membrane. It covers over and around many organs in the abdominopelvic cavity holding them in place, transmitting nerves/vessels. Secretes serous fluid which helps lubricate/moisten the parts it comes in contact with.
Topographical (Surface) Anatomy
Linear Guide
an imaginary line drawn on the surface of the body which represents the approximate location of some deeper, underlying structure
Topographical (Surface) Anatomy
Anatomical Guide
defined as any surface, prominence, or structure used in locating an adjacent structure or prominence.
One piece of anatomy is used to find another
Topographical (Surface) Anatomy
Anatomical Limits
the point of origin and point of termination of a structure, such as a blood vessel, in relation to adjacent structures.
a blood vessel courses through body, hits certain point it changes name
Regional Anatomy: Abdominal-Pelvic
4 Region Plane
- Upper Right
- Upper Left
- Lower Right
- Lower Left
Regional Anatomy: Abdominal-Pelvic
9 Quadrant Plane
- Right Hypocondriac
- Epigastric
- Left Hypocondriac
- Right Lumbar
- Umbilical
- Left Lumbar
- Right Iliac (Inguinal)
- Hypogastric (Pubic)
- Left Iliac (inguinal)
Regional Anatomy: 9 Quadrant Regions
Superior Lateral Regions
- Right Hypocondriac
- Left Hypocondriac
Regional Anatomy: 9 Quadrant Regions
Superior Middle Region
- Epigastric Region
Regional Anatomy: 9 Quadrant Regions
Lateral to Umbilical Region
- Right Lumbar Region
- Left Lumbar Region
Regional Anatomy: 9 Quadrant Regions
Middle Region
Umbilical Region
Regional Anatomy: 9 Quadrant Regions
Inferior Lateral Regions
- Right Iliac
- Left Iliac
Regional Anatomy: 9 Quadrant Regions
Inferior Middle Region
Hypogastric Region
Body Organization
What do we find at the cellular level?
- Irritablity or ability to respond to a stimuls
- ability to take in food and water
- abiity to give off waste products
- abiity to grow and mature
- ability to reproduce
Body Organization
What are cells?
- the smallest, functional units of organization in the body
- Protoplasm- highly specialized product that is a combination of various chemical elements organized into units known as **cells.
Body Organization
1st Level of Organization
The chemical level
* includes all atoms and molecules that come together to form the various chemical substances needed to maintain life.
Body Organization
2nd Level of Organization
Cells
Body Organization
3rd Level of Organization
Tissue
* refers to a group of similar cells arranged for the performance of some particular funtion.
* Can be broken down into 4 subdivisions
Ex: Muscle Cells = Movement
Body Organization: Tissue Subdivision
Epithelial Tissue
- is found covering the outer surface of many body parts and lining the inner surfaces of body cavities and organs
- the variety of tissue which is involved in forming secretions produced by glands
Body Organization: Epithelial Tissue Types
What are the types of Epithelial tissue?
- Squamous Epithelium
* Flat, thin - Columnar Epithelium
* long, tall - Cubodial Epithelium
* Cube shaped - Stratisfied Epithelium
* Layers, any of these tissues can be stratsfied s long as it’s in layers
Body Organization: Epithelial Tissue Subdivision
Membranes
Any thin, sheet like expanse of tissue
1. Mucous Membranes
* line body cavities that open out to the surface of the body. They secrete mucous. (Mouth,Nasal,Trachea)
2. Serous Membrane
* lines closed body cavities, secretes serum/serus fluid which pevents friction
Body Organization: Tissue Subdivision
Connective Tissue
connects, supports, and binds body parts together. More intracellular space between cells, not as tightly packed as Epithelial
Body Organization: Connective Tissue Subdivision
What are the types of Connective Tissue?
- Areolar (loose) Connective tissue
- Adipose (fatty) Tissue
- Fibrous Connective Tissue
- Bone
- Cartilage
- Hemopoietic (blood forming) tissue
Body Organization: Connective Tissue Subdivision
Areolar (Loose) Connective Tissue
variety of scattared, irregular fibers embedded in a soft, gel-like base (hyaluronic acid) it serves as glue which binds together many other body tissues
Body Organization: Connective Tissue Subdivision
Adipose ( Fatty ) Tissue
a type of connective tissue specialized for storing fat
Body Organization: Connective Tissue Subdivision
Fibrous Connective Tissue
strong, fibrous bundles of tissue, which provide great strength and support (tendons, ligaments, fascia)
Body Organization: Connective Tissue Subdivision
Bone
hardened, calcified connective tissue
Body Organizaton: Connective Tissue Subdivisions
Cartilage
made up of softer, more flexible consistency than bone
Body Organization: Connective Tissue Subdivision
Hemopoietic (Blood Forming) Tissue
also the blood itself. specialized tissue found in red bone marrow, and in such areas as the spleen, tonsils, and lymph nodes. blood is a liquified connective tissue
Body Organization: Connective Tissue Subdivision
Fascia
thin sheets that enclose and seperate muscles, other interal organs, keeps muscle fibers bundled together
Body Organization: Tissue Subdivision
Muscle Tissue
it is responsible of the movement of body parts
Body Organization: Tissue Subdivision
Nervous Tissue
makes up the various parts of the nervous system which receives stimuli, conducts impulses, and has overall control of the various bodily functions
Body Organization
4th Level of Organization
Organs
Body Organization
Organs
a group of tissues arranged for the performance of some function
Body Organization
5th Level of Organization
Systems
Body Organization: Systems
Systems
a group of organs arranged for the performance of ome particular function
Body Organization: Systems
Skeletal System
bones, cartilage, and ligaments which provide support and protection to the body
Body Organization: Systems
Circulatory System
the heart, blood, and blood vessles. plus, the lymphatic system serving to transport gases, nutrients, and waste products throughout the body along with preventing it from disease
Body Organization: Systems
Muscular Systems
all of the bodys muscles which are concerned primarily with movement of body parts
Body Organization: Systems
Endocrine System
group of glands which give off secretions which serve as chemical regulators of various bodily functions
Body Organization: Systems
Nervous System
the brain, spinal cord, and nerves which have overall control over bodily functions and serve to coordinate the performance of tasks by various cells, tissue, and organs in the body
Body Organization: Systems
Digestive System
various organs concerned with the taking in of food products, breaking them down so nutriants can be absorbed, and the elimination of soil and waste products
Body Organization: Systems
Urinary System
the kidneys and related organs which serve to clean waste product from the blood and maintain proper fluid and chemical balances in the body
Body Organization: Systems
Respiratory System
the lungs and other organa concerned with taking in oxygen and the elimination of other respiratory gases
Body Organization: Systems
Reproductive System
organs both male and female which are involved in the reproduction of the species and the development of sexual characteristics
Body Organization: Systems
Integumentary System
the skin and its components which are involved in covering and protecting the body as a whole, as well as such funtions as temperature regulation and acting as a sensory organ
Body Organization
6th level of organization
An organism/human
Anatomical Position: Planes
Anatomical Position
body is erect, facing the observer, with arms at the side, and palms of hands turned forward
Anatomical Position: Planes
Sagittal Plane
cuts the body from front to back resulting in left and right parts
1. Mid-Sagittal (Median) Plane
* Cuts body into equal L and R parts
* Bi-Lateral Plane refers to the fact that only the median plane can divide body into equal halves.
2. Parasagittal Plane
* Vertical cut that is off center, dividing the body into L and R unequal halves
Anatomical Position: Planes
Frontal/Coronal Plane
vertical plane that divides the body from side to side at right angles to the median plane which results in front and back of body
Anatomical Postions: Planes
Horizontal/Transverse/ Cross Planes
cuts body horizontally, crosswise, results in upper and lower parts
Directional Terms
Medial and Lateral
- Medial
* refers to something located towards the midline/median plane of the body - Lateral
* refers to location away from median plane or toward the sides of the body or body part
Directional Terms
- Superior, Cranial, Cephalic
and - Inferior, Caudal
- Superior, Cranial, Cephalic
* located towards the head or upper part of body - Inferior, Caudal
* refers to “tail” or to lower part of body
Directional Terms
- Anterior, Ventral
and - Posterior, Dorsal
- Anterior, Ventral
* used to mean towards front of the body - Posterior, Dorsal
* towards the back of the body
Directional Terms
Deep, Central, Internal
refer to something which is located towards the interior, or center of the body or body part, and away from the surface
Directional Terms
Superficial, External, Peripheral
towards the surface, or edges of the body or part
Directional Terms
Visceral
refers to organs contained within the body cavities
Directional Terms
Parietal
refers to the walls of the body cavity
Directional Terms
Proximial and Distal
- Proximial
* referring to something located towards or closer to the point of attachment of a limb to the trunk of the body - Distal
* farther away from the point of attachment of a limb to the trunk
Directional Terms
Prone and Supine
- Prone
* position of body when laying face down - Supine
* refers to body when layng face up
these terms are also used to describe hand positions palms up (Supine) palms down (Prone)
Parts of a Cell
Nucleus
controls most cellular activities, reproduction, protein synthesis, and contains the cell’s genetic material which determines a person’s various charateristics
Parts of a Cell
Cytoplasm
the protoplasm of a cell which lies between the nucleus and the cell membrane. The cell membrane houses the ribisomes, mitochondria, lysosomes, endoplasmic reticulum, and centrioles
Parts of a Cell: Cytoplasm
Cell Membrane
contains numerous small structures or “organelles” which perform various cellular activities like the jobs of the ribisomes, mitochondria, lysosomes, endoplasmic reticulum, and centrioles
Parts of a Cell: Cytoplasm
Ribisomes
synthesize proteins
Parts of a Cell: Cytoplasm
Mitochondria
“power house” of the cell- produces energy
Parts of a Cell: Cytoplasm
Lysosomes
contain enzymes which digest substances brought into the cell
Parts of a Cell: Cytoplasm
Endoplasmic Reticulum
series of membranes forming canals which transport nutrients and other materials through the cell
Parts of a Cell: Cytoplasm
Centrioles
important in cell division and reproduction
Parts of a Cell
Plasma (cell) Membrane
forms outer boundry of the cell, keeps the cell intact, and regulates the passage of fluids and other substances in and out of the cell, only certain substances can enter and leave, sometimes described as a semi-permeable membrane