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Anatomy Weeks 6-12
| Question | Answer |
|---|---|
| Most movements in the body rely on which type of lever system? First-class Second-class Third-class Fourth-class | Third-class |
| The _______ enables the thumb to touch the tips of the other fingers in opposition? | Opponens pollicis |
| Atria are often called ______ chambers because they receive blood from vessels called veins. | receiving |
| The ______ is supplied with blood from the left subclavian artery. | head and upper extremities |
| The normal ECG is composed of a P wave, QRS complex, and T wave, but not an ______ wave. | E |
| Myocardial cells receive their blood supply from the ______ arteries. | coronary |
| The division(s) of the autonomic nervous system that send fibers to the heart are the ______ and ______ systems. | sympathetic and parasympathetic |
| The heart valves located at the base of the pulmonary artery and the aorta are called ______ valves. | semilunar |
| The structure referred to as the pacemaker of the heart is the ______ node. | SA |
| The fetal circulation opening between the right and left atria that bypasses the lungs is the ______ ovale. | foramen |
| The four parts of the cardiac conduction system are the SA node, AV node, AV bundle, and ______ fibers. | Purkinje |
| Hassall corpuscles are found in the ______. | thymus |
| The lymph nodes located just above the bend of the elbow are the ______ lymph nodes. | supratrochlear |
| The breast is drained by lymphatics from both the skin and substance of the breast, especially the ______ and ______. | areola and nipple |
| The largest of the paranasal sinuses is the ______ sinus. | maxillary |
| The respiratory system is divided into the ______ and the ______ tracts. | upper, lower |
| The smallest branches of the bronchial tree are called ______. | bronchioles |
| The muscle that primarily performs flexion of the forearm is the ______. | brachialis |
| The ______ nerve is the main nerve controlling the diaphragm. | phrenic |
| Blood in the hepatic portal vein comes directly from the gastrointestinal organs and goes to the ______. | liver |
| The small intestine is lined with columnar epithelial cells that have ______ to increase surface area for absorption. | microvilli |
| The ______ cells in the liver act as phagocytes that filter bacteria and debris from blood. | Kupffer |
| The largest lymphatic organ in the body is the ______. | spleen |
| The wave-like contractions that propel food through the digestive tract are called ______. | peristalsis |
| The region of the brain that controls basic life functions like heart rate and breathing is the ______. | medulla oblongata |
| The ______ system returns excess interstitial fluid to the bloodstream and plays a role in immune defense. | lymphatic |
| The ______ muscle is responsible for extending the forearm at the elbow. | triceps brachii |
| The flap that prevents food from entering the trachea during swallowing is the ______. | epiglottis |
| The fluid that surrounds and protects the brain and spinal cord is called ______. | cerebrospinal fluid |
| Red blood cells are produced in the ______ of bones. | bone marrow |
| The small bean-shaped structures that filter lymph are called ______. | lymph nodes |
| The type of neuron that carries signals from the body to the central nervous system is a ______ neuron. | sensory |
| True/False: The brachialis muscle is responsible for flexing the forearm. | True |
| True/False: The hepatic portal vein carries blood from the liver to the digestive tract. | False |
| True/False: The small intestine contains a brush border of microvilli to increase nutrient absorption. | True |
| True/False: Kupffer cells are found in the spleen and filter lymph. | False |
| True/False: Peristalsis is the involuntary wave-like movement that propels food through the digestive tract. | True |
| True/False: The phrenic nerve controls the diaphragm and assists with breathing. | True |
| True/False: The triceps brachii muscle is involved in flexing the elbow. | False |
| True/False: The epiglottis prevents food from entering the nasal cavity during swallowing. | False |
| True/False: The medulla oblongata regulates vital functions like heart rate and respiration. | True |
| True/False: The spleen is the primary site of red blood cell production in adults. | False |
| True/False: Cerebrospinal fluid cushions and protects the brain and spinal cord. | True |
| True/False: Lymph nodes filter interstitial fluid before returning it to circulation. | True |
| True/False: Sensory neurons carry impulses from the brain to muscles. | False |
| True/False: The stratified squamous epithelium lining the esophagus is resistant to abrasion. | True |
| True/False: The stomach is the primary site of nutrient absorption in the digestive tract. | False |
| Which of the following muscles does not directly cause movement of the upper arm? a) Trapezius b) Deltoid c) Pectoralis major d) Latissimus dorsi | a) Trapezius |
| The diaphragm assists in breathing by doing what during contraction? a) Increasing thoracic cavity volume b) Closing the airway c) Expelling air from the lungs d) Compressing the trachea | a) Increasing thoracic cavity volume |
Created by:
BertC
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