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Lynda Nguyen
Anatomy (SCI 220) - Weeks 6 through 12
| Question | Answer |
|---|---|
| Describe the reflex arc using the terms: stimulus, afferent neuron, and efferent neuron | Stimulus => afferent neurons send signals to brain => brain interprets message and sends signals to efferent neurons => response in body |
| Myelin on axons are formed by what type of cells? | Schwann cells |
| What is the name and function of Cranial Nerve (CN) V? | Trigeminal Nerve - Carries sensory information from teeth and skin of head & carries motor information to muscles of mastication |
| What is the name and function of Cranial Nerve (CN) IX? | Glossopharyngeal nerve - Carries sensory information from the tongue and receptors that detect BP that aid and control respiration & carries motor information to muscles used for swallowing and salivary glands |
| What is the name and function of Cranial Nerve (CN) XI? | Accessory Nerve - Carries sensory information from and motor information to most of the internal organs |
| The diencephalon of the brain consists of what 3 major parts? | Thalamus, hypothalamus, pineal body |
| What are the most abundant cells in the CNS? | Astrocytes |
| _____ area is in the frontal lobe and manages speech | Broca's |
| ____ area is in the temporal lobe and manages language comprehension | Wernicke's |
| What systems and organs are involved in balance? | Visual (eyes), vestibular (inner ears), and somatosensory (joints, muscles, tendons) |
| What systems is that pancreas involved in and what are its functions? | Endocrine system - regulates blood sugar by secreting insulin and glucagon Digestive system - secretes digestive enzymes, neutralizes stomach acid |
| Where is the sinoatrial (SA) node located and what is its function? | The sinoatrial (SA) node acts as the natural pacemaker of the heart (starts process of pumping blood) and is located in the right atrium. |
| Why are veins used for blood draws as opposed to arteries? | Veins have lower blood pressure and are on the surface of the skin. |
| ______ are types of white blood cells, which secretes heparin and histamine. | Basophils |
| What is the function of lymphocytes? | Humoral defense: secretes antibodies, involved in immune system response and regulation |
| Name the layers comprising the wall of the heart. | Epicardium (outer layer), myocardium (thick middle layer), and endocardium (delicate inner layer) |
| What keeps lymph fluid from coming out/down of the lymph capillaries? | Flap-like mini-valves |
| The right lymphatic duct drains ____ percent of the body in the right arm, ______, and ________. | 25%; right side of head and neck; right lung |
| What are the components of the upper respiratory tract? | Nasal cavity, pharynx, and larynx |
| What are the components of the lower respiratory tract? | Trachea, bronchi, alveoli, and lungs |
| The ____ lung is larger than the _____ lung | right; left |
Created by:
lyndan6121