BIOD 151 Module 5: Problem Set

Attempt History Attempt Time Score LATEST Attempt 1 91 minutes 0 out of 5 * * Some questions not yet graded Score for this quiz: 0 out of 5 * Submitted Aug 16 at 10:17pm This attempt took 91 minutes. 8/17/22, 8:44 PM 2/18 7. Describe the origin and insertion of attachment to bones. 8. Describe muscle action and innervation. Your Answer: 1. Cardiac, skeletal, and smooth 2. A person can consciously decide to use these muscles to complete an action. 3. Brain and spinal cord 4. motor action - messages from the central nervous system to a muscle sensory input - nerves that carry information from the external environment to the central nervous system 5. true 6. Tendons are connective tissues that connect skeletal muscle to bone at each end. Ligaments are connective tissue that connects bone to bone to stabilize joints where bones meet. 7. The origin is the bony site of attachment which is stationary during the movement. The insertion of a muscle is the bony site of attachment that is moved by the muscle contraction 8. The action of the muscle is what effect is produced by the muscle's contraction. The innervation is the peripheral nerve that supplies a muscle with the message from the brain 8/17/22, 8:44 PM 3/18 9. Make a chart for the origin, insertion, action and innervation for the following muscles: *Note: All muscles listed in the module will need to be memorized for the exam. This is not an exhaustive list. Making a chart to organize the information is a helpful way to study the muscles. You may want to make a full chart on your own to study and review for the exam. Question 2 Not yet graded / 0 pts 1. Cardiac, skeletal and smooth 2. Skeletal muscles are under conscious control, meaning that a person can consciously decide to use these muscles to complete an action. 3. Brain and spinal cord 4. Messages from the central nervous system to a muscle are called a motor actions. Nerves also carry information from the external environment to the central nervous system, called sensation or sensory input. 5. False 6. Tendons are connective tissues that connect skeletal muscle to bone at each end. Ligaments are connective tissue that connects bone to bone, helping to stabilize joints where bones meet. 7. The origin is the bony site of attachment which is stationary during the movement. The insertion of a muscle is the bony site of attachment that is moved by the muscle contraction. 8. The action of the muscle is what effect is produced by the muscle’s contraction. The innervation is the peripheral nerve that supplies a muscle with the message from the brain. Muscle Origin Insertion Action Innervation Other notes: (Optional) 8/17/22, 8:44 PM 4/18 Orbicularis oculi Buccinator Temporalis Sternocleidomastoid Longissimus thoracis Spinalis Rectus abdominis Transverse abdominis Diaphragm Your Answer: Orbicularis oculi Action: eye closure Innervation: facial nerve (CN VII) Buccinator Action: compress cheeks Innervation: facial nerve (CN VII) Temporalis Action: Elevates mandible, closes jaw Innervation: trigeminal nerve (CN V, mandibular branch) Sternocleidomastoid Origin: sternal end of clavicle and manubrium Insertion: mastoid region of skull Action: Bilateral: neck flexion Unilateral: turns face to opposite side Innervation: accessory nerve (CN XI) Longissimus thoracis Origin: transverse process of all thoracic and lumbar vertebrae Insertion: transverse processes of all thoracic vertebrae Action: 8/17/22, 8:44 PM 5/18 Bilateral extension of spine Unilaterally: lateral flexion of spine Innervation: thoracic and lumbar spinal nerves Spinalis action: extensor of the vertebral column Rectus abdominis Origin: pubic crest, pubic symphysis Insertion: pubis, cartilages of ribs 5-7, xiphoid process Action: flexion of spine, compression of abdominal viscera Innervation: spinal nerves (T 7-T 12) Transverse abdominis – deep to internal oblique Origin: lateral inguinal ligament, inner iliac crest Insertion: linea alba, pubis Action: compression of the abdomen Innervation: first lumbar nerve (T 7- L1), iliohypogastric (T12-L1), ilioinguinal (T12-L1) Diaphragm Origin: cartilage of ribs 7-12, xiphoid process, lumbar vertebrae Insertion: anterior longitudinal ligament (vertebral column) Action: expands thoracic cavity, compresses the abdominal cavity Innervation: phrenic nerve (C3-5) 8/17/22, 8:44 PM 6/18 10. Label the following muscles of facial expression: A: C: F: H: Question 3 Not yet graded / 0 pts 8/17/22, 8:44 PM 7/18 11. Your patient has damage to bilateral facial nerves (CN VII). Name at least three muscles that would be impaired. Anatomy of the Muscular system: Part II 12. Label the following muscles (posterior view): A: C: D: