Nervous and Endocrine Systems

The first page covers the intricate workings of the nervous and endocrine systems, detailing their structures and functions in maintaining bodily homeostasis. The nervous system is divided into central and peripheral components, with neurons serving as the primary communication units.

Definition: Homeostasis refers to the body's ability to maintain stable internal conditions despite external changes.

Vocabulary: Neurotransmitters are chemical messengers that facilitate communication between neurons across synapses.

Example: A practical demonstration of nervous system function involves measuring reaction time by catching a dropped ruler, with variations including verbal cues or distractions.

Highlight: The endocrine system works through specialized glands that secrete hormones directly into the bloodstream, with the pituitary gland acting as the master controller.

The page also details important processes such as:

• Menstrual cycle regulation through hormones FSH and LH
• Blood sugar control via pancreatic insulin
• Reflex actions that bypass conscious brain processing
• Plant responses to environmental stimuli
• Visual system anatomy and function
• Temperature regulation mechanisms

Definition: Diabetes occurs when the pancreas cannot produce sufficient insulin, leading to blood sugar regulation problems.