First it's important to remember that by being in college you are investing in your future. Most sources recommend that a typical undergraduate college student should study at least 2 hours outside of class each week per unit credit. So for a 4 credit hour course, this common guideline suggests that a typical student should spend at least 8 hours outside of class studying for that course each week.
Introduction to the Vagus Nerve. The vagus nerve is the paired tenth cranial nerve that branches out from the brain and supplies parts of the gastrointestinal system such as the stomach, and parts of the respiratory system such as the lungs.To supply vital organs, it has further to travel than the other cranial nerves.he vagus nerve is the paired tenth cranial nerve that branches out from the brain and supplies parts of the gastrointestinal system such as the stomach, and parts of the respiratory system such as the lungs.
In the thorax and abdomen, the vagus nerve is the main parasympathetic outflow to the heart and gastro-intestinal organs. The Heart. Cardiac branches arise in the thorax, conveying parasympathetic innervation to the sino-atrial and atrio-ventricular nodes of the heart (For more heart anatomy, see here). Pharyngeal branches â Provides motor innervation to the majority of the muscles of the pharynx and soft palate. 2  Superior laryngeal nerve â Splits into internal and external branches. 3  The external laryngeal nerve innervates the cricothyroid muscle of the larynx.