Human Body Systems

Kaposi’s sarcoma

A symptom from AIDS that affects the integumentary system

Pneumonia

A symptom from AIDS that affects the respiratory system

Yeast Infection

A symptom from AIDS that affects the reproductive system

Candida affecting esophagus

A symptom from AIDS that affects the digestive system

Acquired Immune Deficiency Syndrome

Meaning of AIDS

Muscle Tissue

Contracts to produce movement, categorized as skeletal (voluntary), cardiac (heart), and smooth (involuntary organs)

Nervous Tissue

Composed of neurons and glial cells, it transmits electrical signals for communication throughout the body. 

Connective Tissue

Supports, binds, and protects other tissues, including bone, blood, fat (adipose), cartilage, and fibrous tissues.

Epithelial Tissue

Covers surfaces (like skin) and lines body cavities, forming barriers for protection, secretion, and absorption.

ORGAN

A group of tissues that work together to perform closely related functions.

Organ System

A group of organs that work together to perform a single function

Tendons

connect bones to muscles

Ligaments

•connect bone to bone.

Cartilage

cushions places where bones connect and offers flexibility.

Respiratory System

moves oxygen from the outside environment into your body.

The Digestive System

•Breaks down food into molecules the body can absorb.

Excretory System

collects wastes produced by cells and removes these wastes from your body

4 1/2 inches

Average length of a kidney

4-6 ounces

weight of a kidney

1-2 liters

daily urine output of a kidney

Immune System

•Its role is to protect you from foreign invaders.

Pathogen

•is a bacterium, virus, or other microorganism that can cause disease.

T-Cells

help control the entire immune response by telling other immune cells what to do.

B-Cells

main job is to identify and attack specific germs by producing antibodies that lock onto the invader so other immune cells can destroy it.

lymphocytes.

•White blood cells that target specific pathogens

Antibodies

•are special proteins that recognize and defeat invading pathogens.

Antigen

is any substance that when introduced into the body stimulates the production of an antibody immune response.

Immunity

is a state in which the body has sufficient defenses to fight infection, disease or invasion by pathogens

Non- Specific Immunity

refers to the defenses that are in place at all times and are not specific to the pathogen to which the system is responding.

Specific Immunity

is a specific antibody response to the pathogen and has been acquired in one of several ways.

lymphatic system

is an extensive drainage network that helps keep bodily fluid levels in balance and defends the body against infections.

Endocrine System

is a collection of ductless glands that secrete special proteins called hormones.

Hypothalamus

Acts on the kidney to regulate fluid balance

Pituitary

Growth and regulates other glands

Thyroid

Metabolism

Pancreas

Blood Sugar

Adrenal gland

Heart rate and blood pressure

Testes

Sperm and male characteristics

Ovaries

Eggs and female characteristics