A&P 1 module 5 Correct 100%

Name the three types of muscle tissue found in the body - ANSWER Cardiac, skeletal and smooth What does it mean that skeletal muscles are under conscious control? - ANSWER Skeletal muscles are under conscious control, meaning that a person can consciously decide to use these muscles to complete an action. What is included in the central nervous system? - ANSWER Brain and spinal cord Describe a motor action vs. sensory input in terms of the nervous system. - ANSWER 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. True or false: The brachial plexus supplies nerves to the lower extremities. - ANSWER False Describe the difference between tendons and ligaments. - ANSWER 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. Describe the origin and insertion of attachment to bones. - ANSWER 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. Describe muscle action and innervation. - ANSWER 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. Your patient has damage to bilateral facial nerves (CN VII). Name at least three muscles that would be impaired. - ANSWER Could include any three: Orbicularis oculi, Orbicularis oris, Zygomaticus major/minor, Risorius, Frontalis, Buccinator