Presentation is loading. Please wait.

Presentation is loading. Please wait.

Clicker Review: Unit 4 Muscular System. Which of the following is not a function of the muscular system? 1.Movement 2.Thermogenesis 3.Maintain posture.

Similar presentations


Presentation on theme: "Clicker Review: Unit 4 Muscular System. Which of the following is not a function of the muscular system? 1.Movement 2.Thermogenesis 3.Maintain posture."— Presentation transcript:

1 Clicker Review: Unit 4 Muscular System

2 Which of the following is not a function of the muscular system? 1.Movement 2.Thermogenesis 3.Maintain posture 4.Support joints 5.All are functions

3 Muscle fibers are considered “excitable.” What does this mean? 1.They can shorten & thicken 2.They can produce electrical signals 3.They can elongate without damaging the tissue 4.The can return to their original position

4 Which of the following is not a difference between the 3 types of muscular tissue? 1.Smooth & cardiac tissue contract involuntarily but skeletal tissue contracts voluntarily 2.Smooth & cardiac tissue have 1 nucleus but skeletal tissue is multinucleated 3.Smooth & cardiac muscle cells are joined by electrical junctions but skeletal muscle cells are joined by neuromuscular junctions 4.Both 1 & 2 5.Statements #1-3 are true.

5 Muscle cells are called…? 1.myofibrils 2.myofilaments 3.fibers 4.sarcomeres

6 The immovable end of a muscle is called the …? 1.Insertion 2.Proximal tendon 3.Distal tendon 4.Origin

7 Muscles that contract and assist the prime mover are called… 1.Agonists 2.Synergists 3.Antagonists 4.Fixators

8 What is this called? 1.perimysium 2.epimysium 3.endomysium 4.Fasicle 5.Fascia

9 What is this called? 1.perimysium 2.epimysium 3.endomysium 4.Fasicle 5.Fascia

10 What is this called? 1.perimysium 2.epimysium 3.endomysium 4.Fasicle 5.Fascia

11 What proteins make up the “thin” filaments? 1.Myosin, actin, myofilaments 2.Myosin, actin, troponin, tropomyosin 3.Actin, troponin, tropomyosin 4.troponin, tropomyosin

12 What is this synapse called? 1.Motor endplate 2.Chemical synapse 3.Neuromuscular junction 4.Neurotransmitter junction

13 What is this structure? 1.Muscle fiber 2.Sensory cell 3.Motor neuron 4.None of the above

14 What are the “purple circles?” 1.vesicles 2.neurotransmitters 3.mitochondria 4.Acetylcholine receptor sites

15 What is the functional unit of a muscle? 1.Sarcomere 2.Neuromusclualr junctions 3.Muscle fibers 4.Actin and myosin

16 When 1 neuron (nerve cell) sends a signal to 25 muscle fibers, this group is called a what? 1.muscle 2.Nerve group 3.Neurotransmitter cluster 4.Motor unit

17 What makes up the red line? 1.Actin 2.Myosin 3.Troponin 4.Myofibril

18 The myofilaments have decreased in length to achieve contraction. 1.TRUE 2.FALSE

19 What causes Myosin to release from Actin? 1.Troponin 2.Tropomyosin 3.ATP 4.Calcium

20 What pulls the actin filaments inwards to shorten a muscle? 1.Sarcomeres 2.Myosin 3.Sarcoplasmic reticulum 4.T-tubule

21 When the nervous impulse stops, what happens? 1.Tropomyosin is moved & uncovers the myosin binding sites 2.Acetylcholine is released into the synaptic cleft 3.ATP is no longer produced 4.Calcium is pumped into the sarcoplasmic reticulum

22 What is the name of this muscle? 1.Masseter 2.Semitendonosous 3.Zygomaticus 4.Platysma 5.Serratus anterior

23 What is the name of this muscle? 1.Masseter 2.Platysma 3.Obicularis oris 4.Buccinator 5.Rectus femoris

24 What is the name of this muscle? 1.Serratus anterior 2.Rectus abdominus 3.Vastus lateralis 4.External abdominal oblique 5.Gracilis

25 What is the name of this muscle? 1.Soleus 2.Gastrocnemius 3.Vastus lateralis 4.Sartorius 5.Gracilis

26 What is the name of this muscle? 1.Vastus medialis 2.Semitendonosus 3.Semimembranosus 4.Biceps brachii 5.Biceps femoris


Download ppt "Clicker Review: Unit 4 Muscular System. Which of the following is not a function of the muscular system? 1.Movement 2.Thermogenesis 3.Maintain posture."

Similar presentations


Ads by Google