New User Special Price Expires in

Let's log you in.

Sign in with Facebook


Don't have a StudySoup account? Create one here!


Create a StudySoup account

Be part of our community, it's free to join!

Sign up with Facebook


Create your account
By creating an account you agree to StudySoup's terms and conditions and privacy policy

Already have a StudySoup account? Login here

Unit 2 Week 1 of Human Anatomy (EEB 24)-- Muscles and nerves

by: Stefanie Schumacher

Unit 2 Week 1 of Human Anatomy (EEB 24)-- Muscles and nerves EEB 240

Marketplace > Ecology, Evolution, and Marine Biology > EEB 240 > Unit 2 Week 1 of Human Anatomy EEB 24 Muscles and nerves
Stefanie Schumacher
GPA 4.0
View Full Document for 0 Karma

View Full Document


Unlock These Notes for FREE

Enter your email below and we will instantly email you these Notes for Human Anatomy

(Limited time offer)

Unlock Notes

Already have a StudySoup account? Login here

Unlock FREE Class Notes

Enter your email below to receive Human Anatomy notes

Everyone needs better class notes. Enter your email and we will send you notes for this class for free.

Unlock FREE notes

About this Document

These notes contain the break down of muscles and the beginning of nerves.
Human Anatomy
Dr. Alston
Class Notes
Human Anatomy, anatomy, Muscles, nerves, muscle tissue, nervous system, EEB




Popular in Human Anatomy

Popular in Ecology, Evolution, and Marine Biology

This 8 page Class Notes was uploaded by Stefanie Schumacher on Friday February 12, 2016. The Class Notes belongs to EEB 240 at a university taught by Dr. Alston in Spring 2016. Since its upload, it has received 32 views.

Similar to EEB 240 at University

Popular in Ecology, Evolution, and Marine Biology


Reviews for Unit 2 Week 1 of Human Anatomy (EEB 24)-- Muscles and nerves


Report this Material


What is Karma?


Karma is the currency of StudySoup.

You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!

Date Created: 02/12/16
Unit 2 Notes—Week 1 (Muscles and nervous)  Muscles o Superficial Fascia  Loose connective tissue (usually)  Continuous connection between loose and dense  Holds skin to muscle  Sometimes holding two muscles together  Easy to tear o Deep Fascia  More dense  Deeper than superficial (but can still be located close to surface)  Separates muscles into groups (flexors and tensors)  Cause compartmentalization in limbs  These compartments are completely enclosed o Busting blood vessels in compartments (due to major blow) can cause pressure and cause nerve damage—such as in the lower leg o Epimysium  Connective tissue around individual muscles  Can be thick like cloth, but can also be thin and hard to see  Continuous with tendon at the end of the muscle o Fascicle  The parts that the muscle is broken up into  Covered by connective tissue called perimysium  Made up of myofibers, or muscle fibers (cells of the muscle) o Endomysium  Connective tissue around each muscle cell (myofiber)  Bundles of proteins called myofibrils  These myofibrils do NOT have connective tissue around them o Tendons  Split up into the different layerings and coverings o From dense to loose o Visual parts of the muscle  Origin  The tendon at the end of the muscle that stays stationary  Can be moved by a different muscle  Multiple origins = heads (biceps and triceps)  Insertion  Moves with contraction o Can only contract a muscle  Multiple insertions = slips (serratus anterior) 2 o Arrangements  Fascicles can be arranged in different ways o Affects range of movement o Affects strength o Can be used to identify muscle  Parallel  Rectus abdominous  Sartorius o This arrangement is uncommon  Fusiform  Parallel in middle, but taper toward end  Ex. Bicep o Very common  Convergent o Broad origin and narrow insertion o Usually triangle-shaped  Pectoralis major  Unipennete o Central tendon that stays as a band of connective tissue through the entire muscle  Forearm and lower leg  Bipennete o Rectus femoris 3  Multipennete o Deltoid, gluteus maximus o Strong because it focuses contraction in one direction  Circular  Orbicularis  Sphinctor o Naming Muscles  Muscles are named for what they do  Extensors, abductors, etc.  For where they attach  For their shape  Nervous System  Broken into 2 systems o Central Nervous System  Completely encased in bone  Brain and Spinal cord  No nerves o Peripheral Nervous System  Everything but the brain and spinal cord  All the nerves of the body  When information goes from the peripheral to central is called afferent or sensory  When information goes from central to peripheral it is called efferent or motor o Motor goes to glands and muscles 4 o Afferent  Somatosensory- touch, pressure, vibration, temp (from skin)  Propiosensory- muscles, tendons, and joints  Movement  Special Sensory- smell, hearing, vision, taste, equilibrium  Visceral- abdominal, blood pressure, internal organs (bladder and rectum), and thoracic cavity o Efferent  Somatic- skeletal muscle  Easily controlled consciously (but we often don’t think about it)  Excitatory  Autonomic- smooth muscle, cardiac muscle, glands  Generally subconscious control  Some functions can be brought under conscious control  Broken into two categories o Sympathetic o Parasympathetic  Sympathetic  Fight or flight o Gets ready for physical activity  Excitatory and inhibitory 5  Ex. Inhibits digestive system  Skin is only sympathetic  Parasympathetic  Rest and digest o Excites and inhibits  Excites digestive system  Sympathetic and Parasympathetic work opposite of each other o Histology of Nerve Tissue  Neurons—transmit info  Glial cells—help neurons (helper cells) o Membrane potentials= electrical signals (along axon in neuron) o Neurotransmitters= chemical signals (between separate neurons)  Short range o Synapse= area of connection between 1 neuron and the next o Synaptic cleft= gap between cells (they do not touch)  Multipolar neuron (typical neuron)  Multiple dendrites  Single axon (long)  Symatic motor  Central Nervous System  Bipolar neuron  Sensory organs 6 o Retina of eye o Olfactory of nose  Unipolar or Pseudo-unipolar  Somato and proprio in peripheral sensory  Anaxonic  Central  Interconnections  No axons visible o Neurological cells  Peripheral and central (different kinds of cells)  Swan cells (peripheral)  Phospholipid make up cells called myelin  Myelin wraps around the axon o Helps speed o Critical in repair  Satellite Cells (peripheral)  Around cell bodies of neuron o Assist  Oligodendrocyte (central)  Act on multiple axons  Structural framework  Increase speed of membrane potentials  Astrocytes (central) 7  Regulate gases  Interact with vascular system  Tight junctions in capillaries in brain o Blood- brain barrier  Little repair  Microglial cells (central)  Remove cell debris (clean-up)  Epodermal (central)  Fluid-filled spaces in brain or spinal cord 8


Buy Material

Are you sure you want to buy this material for

0 Karma

Buy Material

BOOM! Enjoy Your Free Notes!

We've added these Notes to your profile, click here to view them now.


You're already Subscribed!

Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'

Why people love StudySoup

Steve Martinelli UC Los Angeles

"There's no way I would have passed my Organic Chemistry class this semester without the notes and study guides I got from StudySoup."

Kyle Maynard Purdue

"When you're taking detailed notes and trying to help everyone else out in the class, it really helps you learn and understand the I made $280 on my first study guide!"

Jim McGreen Ohio University

"Knowing I can count on the Elite Notetaker in my class allows me to focus on what the professor is saying instead of just scribbling notes the whole time and falling behind."


"Their 'Elite Notetakers' are making over $1,200/month in sales by creating high quality content that helps their classmates in a time of need."

Become an Elite Notetaker and start selling your notes online!

Refund Policy


All subscriptions to StudySoup are paid in full at the time of subscribing. To change your credit card information or to cancel your subscription, go to "Edit Settings". All credit card information will be available there. If you should decide to cancel your subscription, it will continue to be valid until the next payment period, as all payments for the current period were made in advance. For special circumstances, please email


StudySoup has more than 1 million course-specific study resources to help students study smarter. If you’re having trouble finding what you’re looking for, our customer support team can help you find what you need! Feel free to contact them here:

Recurring Subscriptions: If you have canceled your recurring subscription on the day of renewal and have not downloaded any documents, you may request a refund by submitting an email to

Satisfaction Guarantee: If you’re not satisfied with your subscription, you can contact us for further help. Contact must be made within 3 business days of your subscription purchase and your refund request will be subject for review.

Please Note: Refunds can never be provided more than 30 days after the initial purchase date regardless of your activity on the site.