Course content

0h11m

Introduction to Anatomy & Physiology: Crash Course A&P #1

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In this episode of Crash Course, Hank introduces you to the complex history and terminology of Anatomy & Physiology.

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Table of Contents:

Anatomy: The Structure of Parts 2:34
Physiology: How Parts Function 3:50
Complementarity of Structure & Function 4:09
Hierarchy of Organization 4:20
Directional Terms 7:27

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0h10m

Tissues, Part 1: Crash Course A&P #2

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In this episode of Crash Course Anatomy & Physiology, Hank gives you a brief history of histology and introduces you to the different types and functions of your body's tissues.

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Table of Contents:

Nervous, Muscle, Epithelial & Connective Tissues 1:23
History of Histology 2:07
Nervous Tissue Forms the Nervous System 5:17
Muscle Tissue Facilitates All Your Movements 7:00
Identifying Samples 9:03

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0h10m

Tissues, Part 2 - Epithelial Tissue: Crash Course A&P #3

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TO : Phoebe and James McMullan
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Continue being awesome Phoebe & James from John & Hank!

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Today on Crash Course Anatomy & Physiology, Hank breaks down the parts and functions of one of your body's unsung heroes: your epithelial tissue.

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Table of Contents:

Epithelial Tissue Creates Inner & Outer Boundaries 2:19.3
Layering: Simple or Stratefied 5:26
Shape: Squamous, Cuboidal, or Columnar 3:34.5
Epithelial Cells Are Polar 7:17.4
Apical & Basal Sides 7:22
Selectively Permeable 7:43
Glandular Epithelial Tissue Forms Endocrine & Exocrine Glands 8:20.3

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0h10m

Tissues, Part 3 - Connective Tissues: Crash Course A&P #4

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On today's episode of Crash Course Anatomy & Physiology, Hank continues our exploration of tissues, with an introduction to your connective tissues.

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Table of Contents:

Four Types of Connective Tissue 2:34.2
All Develop From Mesenchyme 3:29.5
Different Degrees of Blood Flow 3:45.7
Extracellular Matrix Full of Ground Substance and Fibers 3:59.4
Blast, Cyte, and Immune Cell Types 6:45.4
Marfan Syndrome Affects Connective Tissue 8:31.3

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0h09m

Tissues, Part 4 - Types of Connective Tissues: Crash Course A&P #5

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Learning is the best thing to do with your you!

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Today Hank wraps up our look at Connective Tissues with a discussion of its various types and a breakdown of what you can and can't easily break down. Also chicken.

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Table of Contents:

Loose and Dense Connective Tissue 2:10.4
Areolar, Adipose, Reticular, Tendons, Ligaments, Dense Irregular, and Dense Elastic Tissue 2:54.5
Three Cartilage Types, Spongy and Compact Bone Connective Tissue 5:29
Blood is a Connective Tissue Type 7:14.1

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0h09m

The Integumentary System, Part 1 - Skin Deep: Crash Course A&P #6

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Anatomy & Physiology continues with a look at your biggest organ - your skin.

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Table of Contents:

All About Skin 0:22
Epidermis, Dermis, & Hypodermis 1:30
Melanin And Keratin Cells 2:15
Ensure You Get A Good Tattoo 8:01

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0h09m

The Integumentary System, Part 2 - Skin Deeper: Crash Course A&P #7

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TO: Helle Søndergaard
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Congratulations for finishing first semester on physiotherapy! I'm so proud!

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Today Hank wraps up this look at your integumentary system and all the hard work it does protecting you from and helping you interact with the world around you.

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Table of Contents:

Protects Your Body 1:25
Senses the Outside World 1:42
Helps Excrete Waste 2:17
Stores Blood 2:43
Regulates Temperature 2:59
Makes Vitamin D 5:18
Indicates Signs of Poor Health 3:55
How Your Hair & Nails Grow 5:57
The Difference Between Eccrine and Apocrine Sweat Glands 7:07
Sebaceous (Oil) Glands 8:17

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0h10m

The Nervous System, Part 1: Crash Course A&P #8

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Today Hank kicks off our look around MISSION CONTROL: your nervous system.

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Table of Contents:

Sensory Input, Integration and Motor Output 1:36
Organization of Central and Peripheral Systems 2:16
Glial Cells 3:54
Role, Anatomy and Function of Neuron Types 5:23
Structure and Function of Neurons 6:20

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0h11m

The Nervous System, Part 2 - Action! Potential!: Crash Course A&P #9

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Next stop is whenever. Just be like, "stop."

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What do you and a sack of batteries have in common? Today, Hank explains.

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Table of Contents:

Ion Channels Regulate Electrochemistry to Create Action Potential 4:51
Resting State 3:22
Depolarization 6:09
Repolarization 7:35
Hyperpolarization 8:00

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0h10m

The Nervous System, Part 3 - Synapses!: Crash Course A&P #10

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We continue our tour of the nervous system with a look at synapses and the crazy stuff cocaine does to your body.

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Table of Contents:

Electrical Synapses Use Ion Currents Over Gap Junctions to Transmit Neurological Signals 2:56
Chemical Synapses Turn Electrical Signals Into Chemical Ones 4:01
Chemical Synapses Use Neurotransmitters 5:14
Effects of Cocaine In the Electrochemical System 7:44

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0h10m

Central Nervous System: Crash Course A&P #11

Today Hank talks about your central nervous system. In this episode we'll explore how your brain develops and how important location is for each of your brain's many functions.

Table of Contents
Central Nervous System, Location and Brain Function 1:48
Brain Development 3:21
Neural Tube 3:27
Three Primary Vesicles 3:37
Four Adult Structures and Their Basic Functions 4:17

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0h10m

Peripheral Nervous System: Crash Course A&P #12

It is now time to meet the system that helps your crazy brain stay in touch with the outside world. We follow up last week's tour of the central nervous system with a look at your peripheral nervous system, its afferent and efferent divisions, how it processes information, the reflex arc, and what your brain has to say about pain.

Table of Contents
Peripheral Nervous System 0:38
Afferent and Efferent Divisions 5:42
Information and Responses to Pain 3:12
Five Steps of the Reflex Arc 4:35
Different Kinds of Reflexes 6:44
What the Brain Says About Pain 8:09


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0h08m

Autonomic Nervous System: Crash Course A&P #13

Hank takes you on a tour of your two-part autonomic nervous system. This episode explains how your sympathetic nervous system and parasympathetic nervous system work together as foils, balancing each other out. Their key anatomical differences - where nerve fibers originate and where their ganglia are located - drive their distinct anatomical functions, making your sympathetic nervous system the "fight or flight" while your parasympathetic nervous system is for "resting and digesting."

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Table of Contents
The Basic Two-Part System of the Autonomic Nervous System 0:48
Sympathetic Nervous System 2:33
Parasympathetic Nervous System 2:54
Their Nerve Fibers Originate in Different Parts of the Body 3:22
Sympathetic Ganglia Are Close to the Spinal Cord 4:36
Parasympathetic Ganglia Are Close to Their Effectors 4:59


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0h10m

Sympathetic Nervous System: Crash Course A&P #14

Hank tries not to stress you out too much as he delves into the functions and terminology of your sympathetic nervous system.

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Table of Contents
Sympathetic Nervous System Controls the Body's Stress Response 0:26
How Signals Travel to Effectors 1:48
Acetylcholine in the Ganglion 3:55
Norepinephrine at the Effector 4:42
Norepinephrine and Epinephrine Are Secreted as Hormones 5:35
Alpha Receptors Cause Smooth Muscles to Constrict 7:14
Beta Receptors Cause Smooth Muscles to Relax 7:27


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0h10m

Parasympathetic Nervous System: Crash Course A&P #15

This week we are looking at your parasympathetic division, which is the "resting and digesting" unit. Unfortunately, learning about this de-stressing division also involves a whole lot of memorization. Don't worry, though - we've got some mnemonic devices to help you out!

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Table of Contents
Parasympathetic Nervous System 0:40
Structural Differences from the Sympathetic System 1:41
Twelve Cranial Nerves 4:02
Vagus Nerve 6:40


***

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0h10m

Taste & Smell: Crash Course A&P #16

Hank resists the urge to devour a slice of pizza so that he can walk you through the way we experience our major special senses. It all boils down to one thing: sensory cells translating chemical, electromagnetic, and mechanical stimuli into action potentials that our nervous system can make sense of. Today we're focusing on smell (olfaction) and taste (gustation), which are chemical senses that call on chemoreceptors. As usual, we'll begin with a quick look at how these things can go wrong.

Table of Contents
Anatomy and Physiology of Smell 2:26
The Olfactory Sensory Neurons 3:01
Receptors ? Glomerulus ? Mitral Cells ? Brain 3:47
Taste Receptor Epithelial Cells 7:30
Receptors Trigger Action Potentials to Four Different Cranial Nerves 8:26


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0h10m

Hearing & Balance: Crash Course A&P #17

Crash Course A&P continues the journey through sensory systems with a look at how your sense of hearing works. We follow sounds as they work there way into the ear where they are registered and transformed into action potentials. This mechanism not only helps you hear but also helps maintain your equilibrium.

Table of Contents
Choclea, Basilar Membrane, and Hair Cells Register and Transduct Sound into Action Potentials
The Vestibular Apparatus Responds to Specific Motions
Keep Your Equilibrium 7:36


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0h09m

Vision: Crash Course A&P #18

Next stop in our tour of your sensory systems? VISION. With a little help from an optical illusion, we take a look inside your eyes to try to figure out how your sense of vision works -- and how it can be tricked.


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Table of Contents
The Structure of the Eye 2:31
The Fibrous, Vascular, and Inner Layers 3:33.2
The Retina 4:56
Photoreceptors, Bipolar Cells, and Ganglion Neurons 5:09.2
Rods and Cones 6:07.5


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0h10m

The Skeletal System: Crash Course A&P #19

Today Hank explains the skeletal system and why astronauts Scott Kelly and Mikhail Kornienko are out in space studying it. He talks about the anatomy of the skeletal system, including the flat, short, and irregular bones, and their individual arrangements of compact and spongy bone. He'll also cover the microanatomy of bones, particularly the osteons and their inner lamella. And finally he will introduce the process of bone remodeling, which is carried out by crews of osteocytes, osteoblasts, and osteoclasts.

Table of Contents
Anatomy of the Skeletal System 2:33
Flat, Short, and Irregular Bones 3:11
Arrangements of Compact and Spongy Bone 4:22
Osteons and Their Inner Lamella 5:05
Bone Remodeling 7:28
Osteocytes, Osteoblasts, and Osteoclasts 6:03

***

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0h09m

Joints: Crash Course A&P #20

We continue our look at your bones and skeletal system, skipping over the silly kid's song in favor of a more detailed look at your your axial and appendicular skeleton. This episode also talks about the structural and functional classifications of your joints and the major types of body movement that they facilitate.

Table of Contents
Basic Structure of Your Skeletal System 1:50
Axial and the Appendicular Skeleton 2:02
Structural and Functional Classifications of Joints 3:41
Major Types of Body Movement 6:02


***

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