TEAS Science

  • Anatomical Terminology and Positions (1:03): Learn common terms like cephalic, cranial, frontal, and their meanings, along with standard anatomical positions like anterior, posterior, superior, inferior, medial, lateral, proximal, and distal. It also explains directional terms such as sagittal, frontal, and transverse planes.

  • Respiratory System (7:34): Understand the structure and function of the respiratory system, including the nose, mouth, throat, larynx, trachea, bronchi, bronchioles, alveoli, and lungs. The video explains the process of inhalation and exhalation, gas exchange, pH regulation, and factors affecting the system like diseases, smoking, and pollution.

  • Cardiovascular System (12:55): Explore the heart, blood vessels (arteries, veins, capillaries), and blood. Learn about the four chambers of the heart, the cardiac cycle (systole and diastole), the heart's electrical system (sinoatrial node, atrioventricular node, Purkinje fibers), blood flow, and the system's functions, including blood pressure and temperature regulation.

  • Digestive System (20:26): Discover the GI tract (mouth, esophagus, stomach, small intestine, large intestine, rectum, anus) and accessory organs (teeth, tongue, salivary glands, liver, gallbladder, pancreas). The video details the journey of food, mechanical and chemical digestion, and the roles of enzymes and hormones like gastrin, CCK, secretin, insulin, glucagon, and bile.

  • Nervous System (24:06): Learn about the central and peripheral nervous systems, including the brain, spinal cord, and cranial nerves. The video differentiates between the autonomic (involuntary) and somatic (voluntary) nervous systems and their functions.

  • Muscular System (26:37): Understand the three types of muscle tissue: skeletal, cardiac, and smooth. Learn about their structure, voluntary and involuntary control, and functions in body movement. The video also explains the cooperative work of nerves and muscles.

  • Reproductive System (28:49): Get an overview of the male (testes, epididymis, vas deferens, seminal vesicles, prostate gland, penis) and female (ovaries, fallopian tubes, uterus, vagina, vulva) reproductive organs. The video also discusses the relationship between the reproductive and endocrine systems, highlighting hormones like GnRH, FSH, LH, testosterone, and estrogen.

  • Integumentary System (32:48): Learn about the structure of the skin (epidermis, dermis, subcutaneous hypodermis), hair, nails, and sweat glands. Understand the system's functions in protection, temperature regulation, excretion, and sensation, and its role in homeostasis.

  • Endocrine System (35:10): Discover the glands (pituitary, thyroid, parathyroid, thymus, adrenal, pancreas, testes, ovaries) and their hormone production. The video explains the system's functions in growth, metabolism, reproduction, and mood, as well as the types of hormones and positive and negative feedback mechanisms for homeostasis.

  • Urinary System (39:46): Explore the kidneys (renal cortex, renal medulla), ureters, bladder, and urethra. Understand the system's function in waste excretion, fluid balance, and blood filtration through nephrons, glomerulus, and tubules. The video also highlights the relationship between the cardiovascular and urinary systems.

  • Immune System (42:11): Learn about the innate and adaptive defense systems. The video explains physical and chemical barriers, inflammatory response, histamines, phagocytes, antigens, antigen-presenting cells, helper T-cells, cytotoxic T-cells, cytokines, antibodies, and memory cells. It also differentiates between passive and active immunities.

  • Skeletal System (46:26): Understand the structure and function of bones, joints, and ligaments. Learn about the four major bone types (long, short, flat, irregular) and different bone tissues (compact, spongy, cancellous, trabecular). The video also discusses bone marrow and the relationship between the skeletal and muscular systems.