PTS CANFITPRO THEORY EXAM 2023-2024 ACTUAL EXAM
150 REAL EXAM QUESTIONS AND CORRECT DETAILED
ANSWERS WITH RATIONALES (VERIFIED ANSWERS)
|ALREADY GRADED A
how many skeletal muscles are there in the human body? – ANSWER600 individual muscles. making up about 23% of a woman’s body
weight and 40% of a man’s. it is the most abundant tissue in the body
what are muscle cells made of? – ANSWER- water 73%, well organized
set of proteins 24%, a limited amount of inorganic salts.
what are muscle fibres? – ANSWER- elongated rod shaped cells making
up each muscle (thousands in one muscle). they are grouped into
bundles of 10-150 fibres.
what is fascicle? – ANSWER- bundle of 10-150 muscle fibres
what is the perimysium? – ANSWER- connective tissue that surrounds
fascicles.
what is the epimysium? – ANSWER- connective tissue that surrounds
the entire muscle
what is the tendon? – ANSWER- layers of connective tissue that
amalgamate at the ends of the muscle and attach to the bone.<\/p>\n\n\n\n
What is the sarcolemma? – ANSWER- a thin elastic membrane that
encloses the contents of one muscle fibre.
What is the endomysium? – ANSWER- a thin layer of connective tissue
that surrounds each muscle fibre
What are myofibrils? – ANSWER- the thinner fibres that comprise each
muscle fibre
What are sarcomeres? – ANSWER- the basic unit of muscle contraction.
each one comprised of two types of protein: a thin filament called actin
and a thick one called myosin.
How does a muscle contract? – ANSWER- the individual myofilament
protein strands within the myofibrils are organized longitudinally along
the length of the muscle cell and interact to allow contraction.
what must happen for a muscle to shorten? – ANSWER- its cells must
covert energy (ATP) into mechanical work (contraction).
the term used to describe contraction in which the muscle shortens –
ANSWER- concentric contraction
the term used to describe a force exerted on the muscle as it lengthens –
ANSWER- eccentric contraction<\/p>\n\n\n\n
Two parts of the nervous system – ANSWER- central nervous system
and peripheral nervous system
what are neurons? – ANSWER- they are nerve cells that that transport
nerve signals through out the body. there are two kinds: sensory and
motor.
carry information and sensations from the body and environment to the
CNS – ANSWER- sensory neurons
carry information from the CNS to the muscles to create a response or
movement. – ANSWER- motor neurons
what is a motor unit? – ANSWER- a single neuron together with the
muscle fibres it commands.
Proprioceptors – ANSWER- Sensory receptors, located in the muscles,
joints and tendons that provide information to the CNS to perform
coordinated movement and maintain muscle tone.
What are muscle spindles? – ANSWER- a type of proprioceptor that
consists of several modified muscle enclosed in a blanket of connective
tissue. they provide information about the length of a muscle fibre and
the rate of change in it’s length. they tell a muscle how much it needs to
contract to overcome a given stretch.<\/p>\n","protected":false},"excerpt":{"rendered":"
PTS CANFITPRO THEORY EXAM 2023-2024 ACTUAL EXAM150 REAL EXAM QUESTIONS AND CORRECT DETAILEDANSWERS WITH RATIONALES (VERIFIED ANSWERS)|ALREADY GRADED Ahow many skeletal muscles are there in the human body? – ANSWER600 individual muscles. making up about 23% of a woman’s bodyweight and 40% of a man’s. it is the most abundant tissue in the bodywhat are […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-117762","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/117762","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=117762"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/117762\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=117762"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=117762"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=117762"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}