









Study with the several resources on Docsity
Earn points by helping other students or get them with a premium plan
Prepare for your exams
Study with the several resources on Docsity
Earn points to download
Earn points by helping other students or get them with a premium plan
Community
Ask the community for help and clear up your study doubts
Discover the best universities in your country according to Docsity users
Free resources
Download our free guides on studying techniques, anxiety management strategies, and thesis advice from Docsity tutors
BIOD 151/A&P 1 Module 5 Exam portage learning Lately Updated 2024 BIOD 151/A&P 1 Module 5 Exam portage learning Lately Updated 2024 BIOD 151/A&P 1 Module 5 Exam portage learning Lately Updated 2024 BIOD 151/A&P 1 Module 5 Exam portage learning Lately Updated 2024 BIOD 151/A&P 1 Module 5 Exam portage learning Lately Updated 2024 BIOD 151/A&P 1 Module 5 Exam portage learning Lately Updated 2024 BIOD 151/A&P 1 Module 5 Exam portage learning Lately Updated 2024 BIOD 151/A&P 1 Module 5 Exam portage learning Lately Updated 2024 BIOD 151/A&P 1 Module 5 Exam portage learning Lately Updated 2024
Typology: Exams
1 / 17
This page cannot be seen from the preview
Don't miss anything!
There are three types of muscle tissue found in the body. True False Smooth and cardiac muscle tissue are both under voluntary control.True False The lumbar plexus is part of the central nervous system.True False False- this is a peripheral nerve
Answer the following short-answer question: Acetylcholine is what type of substance?Your Answer: Neurotransmitter. Neurotransmitter Answer the following short-answer question: During a muscle contraction which protein myofilament is pulled along?Your Answer: Actin. Actin Answer the following short-answer question: What is the name of the thin myofilament?Your Answer: Actin. Actin Answer the following short-answer question: What must occur for a muscle contraction to stop?Your Answer: When nerve impulses no longer stimulate the muscle fiber, contraction stops. Calciumions return to sarcoplasmic reticulum and the muscle can relax. Calcium ions must be pumped back into the sarcoplasmic reticulum
Label the following five muscles: B: C: E: G: J: Your Answer: B: Temporalis (L)
Your patient sustained an injury to their facial nerve (CN VII). Which actions would beimpaired? A. Extend head/neck B. Compress cheeks C. Grin/grimace D. Elevate mandible E. A&D F. B&C F.B &C (Buccinator & risorius) Your patient is having difficulty when asked to bring his chin to his chest. He is also having difficulty turning his face from side to side. What muscle is most likely impaired? Thyrohyoid
True or False: When a muscle contracts, the Z lines within a sarcomere come closer together towards the M line. True False True or False: The A band contains thin filaments. True (A band contains thick filaments and thin filaments) False Which muscle contracts to enable the main effort required to stand on your toes? Biceps femoris Quadriceps
Gastrocnemius Tibialis anterior When gluteus maximus contracts, which bone is pulled posteriorly by this muscle? Tibia Ilium Ulna Femur When extensor digitorum contracts, what action(s) occurs? A. Elbow extension
When piriformis contracts, what action(s) will not occur at the hip? A. Internal rotation B. Lateral rotation C. Adduction D. Flexion E. Extension F. A&D G. B&E Use the figure answer the following five questions:
A: Extensor carpi radialis longus C: Extensor digitorum D: Extensor Carpi Ulnaris F: Abductor pollicis longus H: Extensor indicis I: Extensor pollicis brevis Use the figure to label the following six muscles: A: B: C: G:
Your Answer: A: Gastrocnemius B: Tibialis anterior C: Extensor digitorum longus G: Tibialis posterior H: Flexor digitorum longusI: Flexor hallucis longus A: Gastrocnemius B: Tibialis anterior C: Extensor digitorum longus G: Tibialis posterior H: Flexor digitorum longus I: Flexor hallucis longus Answer the following essay question: Describe how acetylcholine, sodium ions and calcium ions work together to enable amuscle contraction. Your Answer: In order to happen a muscle contraction, firstly a nerve signal is a sent to the muscle fibers. And Acetylcholine releases from a motor nerve ending. Acetylcholine binds to themuscle cell and triggers the sodium channels to open and release sodium ions. Sodiumions go to the inside the cell and it will trigger an action potantial that eventually reachesthe sarcoplasmic reticulum. The presence of sodium causes calcium ions to be released. Calcium ions relase from sarcoplamic reticulum of muscle cell and make a muscle contraction to happen. Acetylcholine (a special chemical called a neurotransmitter) is released from a motor nerve at the neuromuscular junction (or NMJ). Acetylcholine binds to receptors on the muscle fiber that cause sodium channels to open. Sodium ions rush inside the cell, triggering an action potential which eventually reaches the sarcoplasmic reticulum. Calcium ions are released from the sarcoplasmic reticulum of the muscle cell, causing a muscle contraction to occur. Quiz Score: 100 out of 100