Upgrade to remove ads
Chapter 2 Basic Exercise Science
Terms in this set (40)
What three systems make up the Human Movement System (HMS)?
The NERVOUS, MUSCULAR, and SKELETAL system
What are the two sections of the nervous system?
1) Central Nervous System 2) Peripheral Nervous System
The Brain and Spinal cord are apart of what portion of the Nervous System?
Central Nervous System
What is the Peripheral Nervous System?
PNS are nerves that connect the CNS to the rest of the body and the external environment
One major part of the Nervous System is Mechanoreceptors, what are they?
sensory receptors responsible for sensing distortion in the body tissue (touch, pressure, stretching, sound waves, etc)
What are three types of Neurons?
1) Sensory 2) Interneurons 3) Motor Neurons
These neurons send messages from the brain to the body, from the brain/spinal cord to erector sites..?
Motor (EFFERENT) Neurons
These neurons transmit impulses from one Neuron to another or from itself to a Motor Neuron..?
These Neurons receive information form the environment, transmit impulses FROM erector sites, and send it to the brain..?
Sensory (AFFERENT) Neurons
These are sensory nerves within the muscle tissue that runs parallel to the muscle fibers and are sensitive to change in length and rate of length change..?
Knowing the function of muscle spindles, explain why its recommended to hold a stretch for at least 30 seconds?
30 seconds is the amount of estimated time it takes for the body to over ride the muscle spindle and golgi tendon function. Typically feels like an internal release/calming of stretched area.
Golgi Tendon Organ (GTO) is what ?
sensory receptors that are sensitive to changes to tension and rate of tension change (pressure is tension but so is lengthening of a muscle fiber). These are located in the tendon attached to the muscles from bone, not the muscles themselves.
What are Joint Receptors?
they sense motion, acceleration, and deceleration in the joints.
How many bones in the skeletal system ?
How many joints in the human body ?
How many bone types are there? What are they?
5 bone types. 1) Long Bone 2) Short Bones 3) Irregular Bones 4) Flat bones 5) Sesamoid Bones
If tendons connect muscle to bone, then what connects BONE to BONE..?
True or False: Exercising can increase bone strength/density? Why or Why Not?
True because of the process of remodeling.
What are the three types of muscle?
1) Skeletal Muscle 2) Smooth Muscle 3) Cardiac Muscle
What is the OUTTER most layer holding together muscle fibers?
What is the DIRECTLY underneath the FIRST layer that is holding muscle fibers together?
Epimysium (directly underneath the fascia)
Underneath the first two layers in a muscle bundle there is the fascicle, which are wrapped by what...?
Each fascicle is then broken down further into separate muscle fibers, these fibers are wrapped by what?
Underneath the Endomysium, were the actual muscle fibers are, the fibers are encased with a plasma. What is this plasma called?
Sarcolemma contains what type of cellar plasma?
What is Sarco-plasma comprised of?
A nuclei, mitochondria, Glycogen, fats, minerals, and oxygen myoglobin
Commonly referred to as "the Functional unit of the muscle" ?
Explain the "Sliding Filament Theory" ?
Describes how think and thin filaments with the sarcomere slide past one another, shortening the entire length of the sarcomere therefore shortening the muscle, which produces force.
What is the "ALL of NOTHING" law of motor unit function?
Motor units cannot vary the amount of force they generate, they either contract or don't
Describe TYPE 1 muscle fibers?
small, low force production, slow twitch, long term contractions (stabilization), slow to fatigue
Describe TYPE 2 muscle fibers?
large, large force production, fast twitch, short term contractions (force and power), quick to fatigue
A system that secretes hormones into the blood stream to regulate a variety of bodily functions (mood, growth, tissue function, etc)..?
Name the four major glands of the Endocrine System?
Hypothalamus, Pituitary, Thyroid, and Adrenal
What endocrine system gland is commonly referred to as the "master" gland due to the fact that it controls many of the other glands and system function?
_____ are ______ and is the primary source of energy during exercise (even daily activities)
Carbohydrates is GLUCOSE
What regulates glucose levels in the body?
What two HORMONES does the Pancreas secrete?
Insulin and Glucagon
What is Glucagons function?
Glycagon is released after the body senses a drop in blood glucose, as it is released it tells the liver to release stored glycogen so it can be metabolized back into glucose.
What is insulin function after glucose enters the blood stream?
Glucose causes a rise in blood Glucose, so insulin cause cells within the body (liver, muscles, fat tissue) to take up glucose from the circulating blood.
Once glucose is stored in the liver, what is it stored as?
Sets with similar terms
NASM CPT 4 - Chapter 2
NASM 2 Notecards
NASM CPT Exam - Chapter 2
Ex Phys exam 2
Other sets by this creator
Chapter 18 Supplementation
Chapter 17 Nutrition
Chapter 15 Exercise Modalities
Chapter 14 Integrated Program Design and OPT model
Other Quizlet sets
Speech Exam 2
Lecture Unit 3 section 1
COMD 1333 Unit 2
Strategic Communication Midterm