bioed online introduction to organ systems. bioed online organ systems cardiovascular respiratory...

BioEd Online

Introduction to Organ Systems

www.BioEdOnline.orgBioEd Online

Organ Systems

Cardiovascular

Respiratory

Nervous

Digestive

Muscular

Skeletal


Cardiovascular System

This system includes the heart and the blood vessels

Blood travels through the vessels to bring oxygen and food to all cells

Blood also carries away the waste products of metabolism

Erythrocytes White blood cells


Diagram of Human Heart

Anterior view

Aorta

Pulmonary artery

Left atrium

Mitral Valve

Left Ventricle

Superior vena cava

Right atrium

Tricuspid Valve

Right Ventricle

BioEd Online


Respiratory System

Respiratory system provides oxygen to body cells and removes carbon dioxide

It includes the lungs and the airways

Breathing, or external respiration, is the taking in of oxygen and the giving off of carbon dioxide

Internal respiration refers to the gas exchange between the blood and body cells

Exhalation

Inhalation


Respiratory System Diagram

Nasal Passage

Pharynx

Trachea

Bronchus

Larynx

Bronchioles

Alveoli


Nervous System

Controls and coordinates conscious and unconscious actions

Two major division of the Nervous System Central Nervous System (CNS): brain and

spinal cord Peripheral Nervous System (PNS): cranial

nerves and spinal nerves

Neurons (nerve cells) transmit electrical impulses throughout the body

Neuroglia is the connective tissue that supports and protects the nervous tissue

BioEd Online


Neuron Diagram

Dendrite

Axon terminals

Cell body

Axon

Myelin sheath

Node of Ranvier

BioEd Online


Diagram of Human Brain

Cerebrum

Corpus callosum

Cerebellum

ThalamusHypothalamus

MidbrainPons

Medulla oblongataSpinal cord

BioEd Online


Digestive System

Responsible for the intake and breakdown of food, absorption of nutrients, and removal of solid waste

Structures Gastrointestinal or GI tract (mouth, pharynx

or throat, esophagus, stomach, small intestine, large intestine)

Accessory (teeth, tongue, mouth, salivary glands, liver, gall bladder, pancreas)


Human Digestive System Diagram

Villi

Mouth

Liver

Pharynx

StomachLarge Intestine

Small Intestine

Esophagus


Muscular System Parts of Muscular System

Muscles Connective tissue

Functions of Muscular System Movement of skeleton Generate heat for the body Maintain posture


Human Muscular System Diagram

DeltoidPectoralis major

Biceps brachi

Gluteus maximus

Rectus femoris

Gastrocnemius


Skeletal System

Parts of skeletal system bones cartilage joints

Functions of skeletal system Framework and support Protection Storage for excess calcium


Human Skeleton Diagram

Sternum

Skull

Clavicle

Ribs

Pelvis

Femur

Patella

Tibia

Scapula

Humerus

Ulna

Radius

Carpals Metacarpals

Fibula

Tarsals

Metatarsals

Phalanges

Phalanges

bioed online introduction to organ systems. bioed online organ systems cardiovascular respiratory...

Documents