Human Physiology - Locomotion & Movement Questions and Answers

What is one reason arteries can withstand higher blood pressure than veins Arteries contain only oxygenated blood Arteries have thick walls that contain layers of muscle and connective tissue Arteries contain all types of blood cells whereas veins contain only erythrocytes Arteries have one way valves to prevent blood from flowing bacloud PL

Figure 39 1 Which area in Figure 39 1 indicates a complete sarcomere 3 2 4 5

The plasma membrane of muscle cells help maintain a concentration gradient of calcium ions Ca2 between muscle cell s cytoplasm and extracellular fluid When a muscle cell receives a signal to contract Ca2 moves down this concentration gradient passing from the extracellular space into the cytoplasm of the cell Which of the following is the most likely mechanism by which Ca2 move across the plasma membrane during muscle cell contraction

The diagram shows the side view of the human elbow Which structure is the radius A A B C 2 The electron micrograph shows sarcomeres in myofibrils of striated muscle during muscle contraction T lines P Q and R S show two regions of one sarcomere C D D How would regions P Q and R S change when the muscle relaxes WasaKENDOS P Q wider B narrower wider no chango R S narrower wider One sarcomere no change P Q RS Name A alenn

The type of stress at a convergent boundary is at a divergent boundary is and at a transform boundary is A Tension Compression Shear B Shear Compression Tension C Tension Shear Compression D Compression Tension Shear E Compression Shear Tension

Complete the following paragraph 1 Skeletal muscles are composed of many individual cells or Click to select Click to select 2 The motor neuron and all the myofibers it innervates is referred to as a Click to select sends a nerve impulse to a skeletal muscle fiber the muscle fiber will Click to select 3 The number of motor units activated determines how much Click to select number of motor units activated the Click to select Click to select sensory neuron more motor neuron be stimulated to contract muscle fibers motor unit force greater the force lesser the force relax 4 Each muscle fiber is innervated by a Every time a motor neuron is generated by the muscle The greater the Therefore lifting a heavy object would require motor units than lifting a light object would require

To make a muscle contract more strongly the nervous system can activate more motor units This process is cal Multiple Choice summation twitch motor unit recruitment incomplete tetanus

While the presence of calcium ions inside the sarcoplasm is necessary for contraction it is not sufficient Once calcium has been released and enables actin myosin crossbridges to form is needed for the muscle contraction Multiple Choice ATP another action potential acetylcholine sodium

Which of the following is are needed for skeletal muscle contraction check all that apply Check All That Apply ATP hydrogen calcium water

In an electromyography EMG read out all motor units can look slightly different because Select all that apply Check All That Apply every muscle has a varying number of motor units so they can generate different frequencies each motor unit can generate a different amount of recruitment every muscle has one motor unit so they have slightly different frequencies each motor unit can innervate a different number of muscle fibers

Draw without tracing the following skeletal elements and label the structures from y structure list that is visible in each identified view 1 Sphenoid posterior view 4 Ethmoid posterior view

Identify the indicated structure 1 2 3 4 2 3

Identify the vertebrae type 1 2 3 4 5 I 2 3

1 In human biology you learn about your body 2 Bones give your body shape 3 Muscles move bones 4 You have five senses 5 The brain pumps blood through the body Fill in the missing words 1 You get the energy you need from 2 Your 3 The 4 1 5 Sight is one of your five bones food help you to move muscles blood pumps blood through the body brain heart brain hea When you think you are using your Underline the answer to each question 1 What moves your arms and legs muscles blood 2 What helps you think and feel brain bones 3 What lets you know what is going on around you bones se 4 What carries materials through the body muscles blood 5 What pumps blood through the body brain heart Answer the questions 1 When is your body working 2 What is biology What are the five con hearts senses

polyurethane Yes No Question 9 2 points O Part III Consider the ATPs that can be generated via substrate level phosphorylation How many ATPs can be generated via TCA Is this enough to support growth is there a net positive in the ATP tally 0 1 yes O 1 no O2 yes O2 no during growth on 36 yes

Sometimes due to inherited disorders nerve cells in the muscular system do not function properly What problems might a person have if he or she had one of these disorders

By the end of glycolysis most of the energy contained in the starting glucose molecule is now in NADH pyruvate ATP glucose

8 7 6 QUESTIONS 3 9 Identify the labeled respiratory muscles and for each indicate whether it is an inspiratory EST 4 5 Muscle 3 Inspiratory Expiratory 13 Ju 3 4 5 oliq dainW 6 8 9

Ecological Succession Use information you have gained from the Ecological Succession reading to help you fill in the boxes below Primary Succession Secondary Succession homew Define it Exemplify it Circle whether each example is an example of primary succession or secondary succession The growth of weeds in an area after a forest fire The growth of pioneer plants where lava has cooled and hardened The growth of Date and crops primary succession primary succession primary succession Activity L secondary succession secondary succession secondary succession

Regarding mitosis and cytokinesis one difference between plants and animals is that O A cleavage furrow forms during cytokinesis in both animals and plants in plants a cell plate begins to form at telophase whereas in animals a cleavage furrow is initiated at that stage in plants a cleavage furrow begins to form at telophase whereas in animals a cell plate is initiated at that stage

Question 1 Paul to student Look I know you were in a car accident But if I give you a make up exam then next thing you know anyone who s sick will want to take a make up Then before you know it anyone who would prefer to go to the beach or watch a ball game during class will want a make up too

Figure 1 4 3 2 10 9 Te Figure 2 11 Credit studiovin shutterstock com

Drag the appropriate labels to their respective targets Calcaneal Achilles Semimembranosus tendon Gastrocnemius Adductor magnus LALO Biceps femoris Gluteus medius Soleus Semitendinosus Reset Help Gluteus maximus Fibularis longus

the appropriate Soleus Calcaneal Achilles tendon bels to their respective targets Fibularis longus Gluteus medius MO Semimembranosus Gastrocnemius Semitendinosus Gluteus maximus Reset Biceps femoris Adductor magnus nu He

Vastus lateralis Soleus Tibialis anterior Gracilis Sartorius Vastus medialis Pectineus Adductor longus Fibularis longus Gastrocnemius Extensor digitorum longus Iliopsoas Rectus femoris

Drag the appropriate labels to their respective targets Brachialis Pectoralis minor Triceps brachii Pectoralis major Rectus abdominis O Sternocleidomastoid Biceps brachii Transversus abdominis Brachioradialis External oblique Platysma Deltoid Internal oblique Re

b d Identify the muscle labeled g e g h Identify the muscle labeled g k m n O

Quadriceps femoris muscle group is which type of muscle A B C A Submit Request Answer B

Figure 1 Cell hypertrophy Healthy cell OC Hypertrophy Increase in cell Size Figure 2 Muscle hypertrophy The case description states Therefore the part of the cell that is malfunctioning is Muscle hypertrophy Write an explanation to the patient s parents about why the patient s cells are malfunctioning because Muscle atrophy

1 Curare is a poisonous plant extract Curare molecules have a chemical structure like the neurotransmitter ACh Curare can bind to the ACh receptor site on the chemically gated ion channels in the motor end plate Even though curare will bind to the receptor site it will not open the ion channel and no ions will pass through What do you think the symptoms of curare poisoning would look like A Muscles will respond too uickly and cause a severe tremor B Curare will only affect cardiac muscle causing fibrillations of the heart C Curare will only affect muscles with ACh receptors paralyzing them D Smooth muscles will become stimulated causing quick movement of nutrients through the digestive system 2 Addition of more mitochondria to a muscle fiber will have the least effect on A slow oxidative fibers B fast glycolytic fibers C both slow and fast oxidative fibers D fast oxidative fibers 3 The thin filaments are not comprised of which of the following components A Actin B Titin Troponin Tropomyosin C D 4 At the neuromuscular junction the muscle contraction initiation event is A a release of calcium ions from the sarcoplasmic reticulum B conduction of an electrical impulse down the T tubules C binding of acetylcholine to membrane receptors on the sarcolemma D sliding of actin and myosin filaments past each other

Identify the joint shown here Copyright by S

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6000 Identify the joint shown at the tip of the pointer Submit Request Answer LT A61 Pelvic Skeleton Female 38 Scientific

What is this type of joint synarthrosis symphysis synovial joint fibrous joint

Identify the joint shown here Copyraht by SOMS 201

Part A 6000 What type of joint is shown at the tip of the pointer 0 500 LT A51 Pelvic Skeleton Female 30 Scientific

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back into ATP O immediately during sustained contraction during the recovery period Question 23 1 point Listen Fatty acids can be used as an energy source for immediate replenishment of ATP glycolytic catabolism oxidative catabolism Question 24 1 point

vhich neurotransm phase acetylcholine dopamine serotonin neuropeptide Y Question 21 1 point 4 Listen Which regulatory protein does calcium bind to in skeletal muscle fibers actin myosin tropomyosin

Which of these structures stores calcium a the sarcolemma b the sarcoplasmic reticulum O c the nuclei d the rough endoplasmic reticulum Question 18 1 point Listen T tubules are formed of the of the myocyte a sarcolemma

When muscles contract producing muscle tension they are taking energy and turning it into energy kinetic mechanical light electrical chemical potential chemical mechanical Question 14 1 point 4 Listen The extracellular matrix around the muscle cell is called endomysium Operimysium

to extended the leg the rectus femoris the vastus lateralis the vastus intermedius the vastus medialis Question 10 1 point Listen Which muscles evert the foot O the tibialis anterior and tibialis posterior the semimembranosus and semitendinosus the vastus medialis and vastus lateralis

Obetween the ribs in the neck O in the pelvic floor O in the abdominal wall Question 8 1 point 1 Listen D Which of these muscles helps to supinate the forearm the triceps brachii the infraspinatus the biceps brachii the brachioradialis

a collection of fibrous tissue that connects muscle to bone extracellular matrix around a muscle cell a bundle of muscle fibers Question 2 1 point Listen The muscle s point of attachment that is more stationary is known as the fulcrum insertion origin sity

Calcium ions bind to the regulatory protein actin myosin Otropomyosin tronanin

Turn to The Big Picture of Skeletal Muscle Contraction Figure 10 20 FYI there is also an animation on Mastering A P Put the five stages of skeletal muscle contraction in order 5 ww 4 2 1 3 V relaxation contraction excitation preparation for contraction excitation contraction coupling

How many ATP are required for each turn of the crossbridge cycle zero one two four

The crossbridge cycle which moves the thick filaments along the thin filaments shortening the sarcomere involves repeatedly binding to the myosin heads bind to troponin the myosin heads bind to the myosin tail the myosin heads bind to the actin active site the myosin heads bind to the tropomyosin

Those calcium ions bind to troponin causing tropomyosin to move which exposes the active sites of the contractile protein O actin hemoglobin myoglobin myosin