Anatomy & Physiology I: Course Structure, Key Topics, and Laboratory Overview

Anatomy & Physiology I: Course Overview

Course Structure and Objectives

This course provides a comprehensive introduction to human anatomy and physiology, focusing on the structure and function of the human body. Students will explore major organ systems, physiological mechanisms, and foundational concepts necessary for advanced study in health sciences.

• Course Format: Weekly lectures and laboratory sessions.

• Textbook: Human Physiology, Stuart Fox, 15th Edition (McGraw-Hill).

• Prerequisites: Human Anatomy (Biology 125) and Chemistry 110 or equivalent courses with a minimum grade of C.

• Assessment: Quizzes, exams, lab reports, projects, and participation.

Major Topics and Weekly Breakdown

1. Introduction to Physiology & Homeostasis

Physiology is the study of the functions and mechanisms occurring in living organisms. Homeostasis refers to the body's ability to maintain stable internal conditions despite external changes.

• Definition: Homeostasis is the maintenance of a stable internal environment.

• Key Mechanisms: Negative feedback loops, sensors, effectors, and control centers.

• Example: Regulation of body temperature.

2. Chemical Composition of the Body

The human body is composed of various chemical elements and compounds essential for life.

• Major Elements: Carbon, hydrogen, oxygen, nitrogen.

• Biomolecules: Carbohydrates, lipids, proteins, nucleic acids.

• Application: Understanding chemical composition is fundamental for studying metabolism and cellular function.

3. Cellular Structure & Function

Cells are the basic units of life, each with specialized structures and functions.

• Cell Membrane: Phospholipid bilayer controlling entry and exit of substances.

• Organelles: Nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus.

• Example: Mitochondria as the site of ATP production.

4. Cellular Respiration

Cellular respiration is the process by which cells generate energy from nutrients.

• Stages: Glycolysis, Krebs cycle, electron transport chain.

• Equation: $C_6H_{12}O_6 + 6O_2 \rightarrow 6CO_2 + 6H_2O + \text{ATP}$

• Application: Energy production for cellular activities.

5. Metabolism

Metabolism encompasses all chemical reactions within the body, including catabolism and anabolism.

• Catabolism: Breakdown of molecules to release energy.

• Anabolism: Synthesis of complex molecules from simpler ones.

• Example: Protein synthesis and glucose breakdown.

6. Cell Signaling & Membrane Potentials

Cells communicate through chemical signals and maintain electrical potentials across membranes.

• Membrane Potential: Difference in charge across the cell membrane.

• Action Potential: Rapid change in membrane potential enabling nerve impulse transmission.

• Example: Neuronal signaling in the nervous system.

7. Nervous System

The nervous system coordinates body activities through electrical and chemical signals.

• Central Nervous System (CNS): Brain and spinal cord.

• Peripheral Nervous System (PNS): Nerves outside the CNS.

• Functions: Sensory input, integration, motor output.

8. Sensory Physiology

Sensory physiology studies how the body detects and processes stimuli from the environment.

• Receptors: Specialized cells that detect changes (e.g., photoreceptors for vision).

• Pathways: Transmission of sensory information to the brain.

• Example: Hearing and vision mechanisms.

9. Endocrine System

The endocrine system regulates physiological processes through hormones.

• Major Glands: Pituitary, thyroid, adrenal, pancreas.

• Hormones: Chemical messengers affecting target organs.

• Example: Insulin regulation of blood glucose.

10. Muscle Physiology

Muscle physiology explores the structure and function of muscle tissue.

• Types of Muscle: Skeletal, cardiac, smooth.

• Contraction Mechanism: Sliding filament theory.

• Equation: $\text{Force} = \text{Mass} \times \text{Acceleration}$

11. Cardiovascular System

The cardiovascular system transports nutrients, gases, and wastes throughout the body.

• Heart Structure: Chambers, valves, vessels.

• Blood Flow: Systemic and pulmonary circulation.

• Example: Oxygen delivery to tissues.

12. Respiratory System

The respiratory system enables gas exchange between the body and the environment.

• Organs: Lungs, trachea, bronchi.

• Gas Exchange: Oxygen in, carbon dioxide out.

• Equation: $\text{CO}_2 + \text{H}_2O \leftrightarrow \text{H}_2\text{CO}_3 \leftrightarrow \text{H}^+ + \text{HCO}_3^-$

13. Digestive System

The digestive system breaks down food and absorbs nutrients.

• Major Organs: Mouth, esophagus, stomach, intestines.

• Processes: Digestion, absorption, elimination.

• Example: Enzyme action in the stomach.

14. Urinary System

The urinary system removes waste products and regulates fluid balance.

• Organs: Kidneys, ureters, bladder, urethra.

• Functions: Filtration, reabsorption, secretion.

• Example: Regulation of blood pressure via kidney function.

15. Reproductive System

The reproductive system is responsible for producing offspring and regulating sexual function.

• Male and Female Organs: Testes, ovaries, uterus, etc.

• Processes: Gametogenesis, hormonal regulation.

• Example: Menstrual cycle regulation.

Laboratory Activities

Lab Schedule and Key Experiments

Laboratory sessions reinforce lecture concepts through hands-on experiments and data analysis.

• Lab Topics: Chemical systems, diffusion/osmosis, plasma protein concentration, muscle physiology, digestive enzymes, blood tests, EKG analysis, urinalysis.

• Lab Exams: Assess practical understanding and application of physiological principles.

• Project: Students complete a research project involving data collection, analysis, and presentation.

Sample Laboratory Schedule Table

Week	Lab Activity
1	Chemical Systems
2	Lab 1: Homeostasis
3	Diffusion, osmosis, filtration
4	Plasma protein and glucose concentration
5	Lab Exam 1
6	Muscle Physiology
7	Lab 2: Digestive enzymes
8	Vision & Hearing
9	Lab 2 Exam
10	Blood tests
11	EKG analysis
12	Urinalysis

Assessment and Grading

Grading Components

Student performance is evaluated through a combination of quizzes, exams, lab reports, projects, and participation.

• Quizzes: Regular assessments on lecture and lab material.

• Exams: Midterm and final exams covering major topics.

• Lab Reports: Written documentation of experimental results.

• Project: Research project with written and oral components.

Sample Grading Table

Component	Points
Quizzes (10)	100
Exams (2)	360
Lab Exams (2)	180
Lab Reports	210
Project	50
Participation	100
Total	1000

Course Policies and Support

Attendance, Withdrawal, and Support Services

Students are expected to attend all lectures and labs, participate actively, and seek help when needed. The course provides accommodations for disabilities, mental health support, and resources for writing and technology.

• Attendance: Required for success; excessive absences may result in withdrawal.

• Support Services: Disabled Student Program, Writers' Resource Center, technology access, mental health support.

• COVID-19 Policies: Safety measures and excused withdrawal options available.

Summary

This course offers a foundational understanding of human anatomy and physiology, integrating lecture and laboratory experiences to prepare students for advanced study in health and biological sciences.