Nervous and Hormonal system

The Central nervous system

The Central nervous system

• Brain

• Spinal cord

• Job: Receives information and makes decisions

Peripheral Nervous system

• Cranial Nerves

• Spinal nerves

• Job: Brings messages in and out of the CNS

What the skin senses

• Touch

• Temperature

• Pressure

What the eyes sense

• light

What the tongue senses

• Taste

What the nose senses

• Smell

Motor area

• Control of voluntary muscle movements

Sensory area

• skin sensations

Frontal Lobe

• Movement

• Problem solving

• Concentrating, thinking

• Behavior, personality and mood

Broca’s Area

• Speech control

Temporal Lobe

• Hearing

• Language

• Memory

Brain stem

• Consciousness

• Breathing

• Heart rate

Parietal Lobe

• Sensations

• Language

• Perception

• body awareness

• attention

Occipital Lobe

• Vision

• Perception

Wenicke’s Area

• Language

• Comprehension

Cerebellum

• Posture

• Balance

• Coordination of movement

The Spinal cord

• The spinal cord is a long, thin bundle or nervous tissue and cells connected to the brain

The Nueron

• A nerve consists of thousands of nerve fibers or specialized cells called neurons

Myelin

• A special covering around the nerve that speeds up the passing of impulses

Synapse

• the point where nerve impulses get transmitted from one to another

Affects of drug and alcohol abuse

• Men who drink heavily have a higher chance of developing cancer in the mouth esophagus, liver and colon

• people can develop problems such as diabetes, dementia and cirrhosis of the liver

• inability to hold down a job

• domestic violence

The endocrine system

• Is a network of glands that secrete hormones

Pituitary Gland

• Controls all other endocrine glands

• influences growth metabolism and regeneration

Parathyroid

• secretes the hormones necessary for calcium absorption

Thymus

• Helps build resistance to disease

Adrenal glands

• Releases hundreds of compounds including cortisone and adrenaline which help you react to emergencies

Hypothalmus

• Regulates hunger thirst sleep and wakefulness

Thyroid

• regulates energy and metabolism

Pancreas

• Aids in the digestion of protein fats and carbohydrates

• Produces insulin which controls

Ovaries

• influences how your blood circulates

Hormones

• A hormone is a chemical produced by an endocrine gland, which alters the activity of the target cells