A & P - Human Body in Health & Illness - Ch 1

Anatomy

Studies the structure of body

Physiology

Describes how the body functions

Pathophysiology

Describes the consequences of the improper functioning of the body, how a body part functions when a person has a disease.

What are the twelve major organ systems that make up the human body?

Integumentary System (in-teg-yoo-MEN-tar-ee)
Skeletal System
Muscular System
Nervous System
Endocrine System
Circulatory System
Lymphatic System
Immune System
Respiratory System
Digestive System
Urinary System
Reproductive System

Integumentary System

Skin, hair & nails
Provides covering for body, regulates body temp, contains some of the structures necessary for sensation.

Skeletal System

Bones, joints & cartilage
Protects and supports body organs and enables us to move around.

Muscular System

Skeletal - muscle attach to bones and are responsible for movement of the skeleton and the maintenance of body posture.
Smooth & Cardiac - found in various organs and tubes, contraction and relaxation help organ systems carry out their functions

Nervous System

Made up of the Brain, spinal cord, nerves and sense organs.
Sensory nerves receive information from environment and it brings it to the spinal cord and brain, where it is interpreted.

Endocrine System

Contains glands that secrete hormones and chemical substances.
Regulate body activities such as growth, reproduction, metabolism, and water balance.

Circulatory System

Consists of blood, heart and blood vessels
This system pumps and transports blood throughout the body.

Lymphatic System

Made up of Lymph nodes, lymphatic vessels, lymph, and other lymphoid organs.
Play important role in fluid balance and in the defense of the body against pathogens and other foreign material.

Immune System

Elaborate defense system that protects the body not only from pathogens but from allergens, and of our own cells, like cancer cells.

Respiratory System

Contains the lungs and other structures that conduct air to and from the lungs.
Oxygen-rich air moves into the lungs; the oxygen is picked up by the blood and distributed throughout the body. Carbon dioxide-rich air moves out of the lungs, thereby ridding

Digestive System

Comprised of organs designed to ingest food and break it down into substances that can be absorbed by the body.

Urinary System

Contains Kidneys and other structures that help excrete waste products from the body through urine.
More importantly it helps control water, electrolytes, and acid-base balance in the body.

Reproductive System

Made up of the organs and structure that enable humans to reproduce.

Homeostasis

Staying the same; ability to maintain a stable internal environment in response to a changing environment.

Anatomical Position

Body standing erect, with face forward, arms at sides and toes and palms of the hands directed forward.

Superior

Part ABOVE another part
ex. Rib cage is superior to my pelvis

Inferior

Part BELOW another part
ex. pelvis is inferior to my rib cage

Anterior or Ventral

Towards the FRONT (belly) surface

Posterior or Dorsal

Towards the BACK surface

Medial

TOWARDS the MIDLINE of the body
ex. my heart is medial to my fingers

Lateral

AWAY from the midline of the body
ex. my fingers are lateral from my heart because they are further away from the middle

Proximal

Structure is nearer the point of attachment, trunk of body

Distal

Structure is furthest away from the trunk.

Superficial

That a part is located on or near the surface of the body.
ex. the skin is superficial to the muscles.

Deep

That the body part is away from the surface of the body.
ex. the bones are deep to the skin.

Central

The part is located in the center

Peripheral

The part is located away from the center and extending towards the limbs.

Sagittal Plane

Divides the body lengthwise from right to left

Frontal Plane

Divides the body from front to back

Transverse Plane

Divides the body horizontally creating a superior and inferior section of the body.

What are the two major cavities in the body?

Dorsal &
Ventral

Where is the dorsal cavity located?

Towards the back of the body and has two divisions

Where is the ventral cavity located?

Towards the front of the body and has two divisions

What are the two divisions in the dorsal cavity?

Cranial & Spinal (vertebral) Cavity

What are the two divisions in the ventral cavity?

Thoracic & abdominopelvic Cavity

What are the two cavities in the Thoracic cavity?

Mediastinum; midportion of thoracic cavity; where HEART & TRACHEA are located.
Pleural Cavity; Right lung located in Right Pleural cavity, left lung located in left pleural cavity.

Define RUQ?

Right Upper Quadrant

Define LUQ?

Left Upper Quadrant

Define LLQ?

Left Lower Quadrant

Define RLQ?

Right Lower Quadrant
- Appendix

What does epi mean?

Upon

What does hypo mean?

Below

What are the three central regions of the abdominopelvic cavity?

Epigastric region
Umbilical region
Hypogastric region

What are the three right regions of the abdominopelvic cavity?

Right Hypochondriac region
Right Lumbar region
Right Iliac region

What are the three left regions of the abdominopelvic cavity?

Left Hypochondriac region
Left Lumbar region
Left iliac region

What is located in the RUQ?

Right lobe of Liver
Gallbladder
Parts of Pancreas
Parts Small/Large Intestine

What is located LUQ?

Lobes Liver
Stomach
Spleen
Parts of Pancreas
Parts Small/Large Intestine

What is located in the RLQ?

Lobes Liver
Stomach
Spleen
Parts of Pancreas
Parts Small/Large Intestine
Appendix
Right Ovary
Right Fallopian tube
Right Ureter

What is located in LLQ?

Parts Small/Large Intestine
Left Ovary
Left Fallopian tube
Left Ureter

Abdominal (a)

anterior trunk just below the ribs

Antecubital (a)

area in the front of the elbow (brachial artery is at)

Axillary (a)

Armpit

Brachial (a)

arm

Buccal (a)

Cheek area

Cephalic (a)

Head

Cerivical (a)

Neck Region

Cranial (a)

Nearer to the head

Digital (a)

Fingers, toes

Femoral (a)

Thigh Area

Flank (a)

Fleshy area along each side between the lower ribs and the top of the hip bones (Love handles)

Inguinal (a)

Area where the thigh meets the trunk of the body; groin

Oral (a)

Mouth

Orbital (a)

Area around the eye

Patellar (a)

Front of the knee over the kneecap

Pedal (a)

Foot

Plantar (a)

Sole of the foot

Pubic (a)

genital area

Sternal (a)

middle of the chest (over the breastbone area)

Umbilical (a)

Naval

Caudal (p)

Near the lower region of the spinal column; near the tailbone

Deltoid (p)

rounded area of the shoulder closest to the upper arm

Gluteal (p)

butt

Lumbar (p)

area of the back between he ribs and hips

Occipital (p)

back of the head

Popliteal (p)

behind, or back of, the knee area

Scapular

shoulder blade area

Viscera

Organs

Mediastinum

Space in the thoracic cavity that contains the heart, esophagus, trachea, thymus gland, and large blood vessels attached to the heart.

Pericardial Cavity

is located within the mediastinum and contains the heart

Pleural Cavity

Where the lungs occupy most of the space within the thoracic cavity

Smooth Muscle

Cardiac Muscle

Skeletal Muscle

vertical plane