Answering the Door With Food Delivery: Which Muscles and Nerves are Involved

Part A 

Stand from a sitting position. Sacral and coccygeal plexuses are the nerves involved. Lumbosacral plexus is also involved. Signals are sent by fibular nerve thought the thighs and pelvis to enable you to stand up. The nerve (fibular nerve) travels through the fibula and senses the foot, leg area, and the toes areas ( El-Kerdi, 2016).  

While standing upright and turn around 180 degrees to face opposite direction. Majority of the muscles are involved when he turns the shoulder turns by use of infraspinatus muscle and rotation of the vertebral column by the obliques. The rotation of the abdomen is aided by iliohypogastric and ilioinguinal nerves. When turning the head, the scalene nerve is used. When he rotates the lower limbs, the iliacus major, and psoasa major and the gluteus muscles are involved. 

Jumping over the couch and move several steps forward. As Matt takes several steps forward, he changes his lower limps which translates to walking. This can be additionally expounded when the heels of Matt's sole leg hits the ground, at that point the underside, trailed by his toes. His following leg at that point takes after behind the main leg and finishes a similar movement. The knee and hip joint flexes while the rear area of the foot hits the ground. While the whole foot is level on the ground the lower leg joint is then flexed supporting the heaviness of Matt. While Matt's weight is exchanged from rear foot area to toe the gluteus, quadriceps femoris, gastrocnemius, and soleus are on the whole muscles utilized when Matt strolls. While the accompanying leg swings the knee joint is flexed on that leg while the ankle joint stays nonpartisan 

Reach forward and grasp a doorknob. When one reaches to grab the door knob, the ocularmotive nerves found in the eye locates the doorknob. The hand is then raised using glenohumeral joint, and also the roataor cuff and biceps muscles are used. The elbow joint extends the hand to reach the door knob. After grabbing the door knob, the palm is flexed using palmaris brevis to enable the finger to surround the doorknob by grasping it. 

Turn a door knob 180 degrees clockwise. The forearm is rotated making the palm to turn upward (supination). Supination uses the biceps brachii which has the musculocutaneous nerve and supinator muscles which has the interosseous nerve 

Sit down in a chair. The hip joints bend trunk towards the leg, the knee causes flexion and lower the body towards the chair. The muscle involved is the hamstrings that are connected to the pelvis and connect to the top of the tibia. The quadriceps are also involved, and they pass to patella to attach to the tibia via patella tendon. The gluteus maximus muscles allow one to stay balanced as he sits down in the chair 

Grasp the chopsticks. The muscles used are extrinsic and intrinsic muscles. The extrinsic muscles in the forearm give the power to grasp the chopsticks with the aid of the following muscles doral interossei, palmar interossei, lumbricalsv and thenar muscles. 

Raise the chicken and rice from a bowl to mouth. The bending of the arm at the elbow is known as Elbow Flexion.    This is aided by anterior muscles namely biceps brachii that helps to rotate the arm, brachialis, and brachioradialis that aids in stabilizing the arm. The nerves involved are median nerve enable impulse to bend the wrist and hand while Matt is raising the chicken, the ulnar nerve has the impulse to bend the wrist and fingers lateral motions and the radial nerve that enable Matts to straighten the hand. 

Bite, chew and then swallow a portion of the food. Velum enables the food to remain in contact with the teeth and each of the three is innervated by the facial nerve. Five muscles control the developments of the velum. The palatoglossal and the levator veli palatini both raise the velum. They are innervated by the vagus nerve (CN.X). The tensor veli palatini tenses the velum. It gets innervation from the trigeminal (CN. V). The palatopharyngus depresses the velum and contracts the pharynx and it innervated by the spinal accessory (CN. XI). The muscularis uvula abbreviates the velumand the spinal accessoy is the thing that innervates it. Both motor and sensory information are vital for the start of the swallow reaction; swallowing is subject to both motor and sensory control or on data from both afferent and efferent frameworks. Sensory input assumes a more imperative part in swallowing than it does in discourse. Sensory information engaged with the start of the swallow originates from the trigeminal, facial, and glossopharyngeal nerves. Information about motor development is gotten from the muscle axles in the tongue using the hypoglossal nerve. The Sensory and motor data from these sources is conveyed to the gulping focus, which is accepted to be situated in the medulla, inside the cores of the reticular development; particularly, the core uncertain. At the point when the swallow reaction is started, this inside makes messages be sent to the glossopharyngeal, the vagus, and the hypoglossal nerves. The glossopharyngeal is viewed as the real nerve for the gulping focus. The nerves that give innervation to gulping are: trigeminal nerve, facial nerve, glossopharyngeal nerve, vagus nerve, spinal extra nerve, and the hypoglossal nerve. 

Part B 

The facial nerve also is known as the seventh cranial nerve that influences the taste of the anterior 2/3 of the tongue. The ninth cranial nerve (Glossopharyngeal nerve) also affects the taste by allowing the posterior parts of the tongue to have the taste ( Harris, 1952) . The Vestibulocochlear nerve is associated with the balance. 

Part C 

The type of reflex is withdrawal reflex. When Matt steps on the nail, it activates pain receptors in the leg. The receptor travels through the sensory neuron to the dossal horn. The sensory neuron synapse with the interneuron that connects to the motor neurons. It then sends the motor impulse to the flexor muscles in the leg muscles to make it contract and pull away from the nail ( Gildenberg, & DeVaul, 1985). 

References 

Harris, W. (1952). Fifth and Seventh Cranial Nerves in Relation to Nervous Mechanism of Taste Sensation.  British Medical Journal ,  1 (4763), 831. 

Gildenberg, P. L., & DeVaul, R. A. (1985). Physiologic and Psychological Contributors to Pain. In  The Chronic Pain Patient  (Vol. 7, pp. 6-11). Karger Publishers. 

El-Kerdi, A. (2016).  Effects of Isolated Core Stability Training on Standing Static Postural Control, Recovery of Standing Postural Control and Kicking Velocity in Soccer Athletes (Doctoral dissertation, Seton Hall University).