click below
click below
Normal Size Small Size show me how
Halie James
Anatomy stack 2 weeks 6-12
| Question | Answer |
|---|---|
| How do the muscles of the thorax work together? | When the diaphragm contracts, it decreases the volume of the thoracic cavity and expels air from the lungs. |
| Movement is one of the most distinctive and easily observed “characteristics of life.” | True. |
| The prime mover can also be called the___. | agonist. |
| Gray matter in the brain and spinal cord consists primarily of___. | cell bodies. |
| The efferent pathways of the autonomic nervous system consist of the ________ nervous systems. | sympathetic and parasympathetic |
| Which compound cannot cross the blood-brain barrier? | Dopamine. |
| The brain has _____ major divisions. | six |
| What function do beta receptors have? | They bind norepinephrine. |
| The hormone produced by the heart___. | increases the excretion of sodium in the urine. |
| What are the gel-like structure embedded with the tips of cochlear hair cells called? | Tectorial membrane . |
| The four structures that compose the conduction system of the heart are the___. | SA node, AV node, AV bundle, and Purkinje fibers. |
| Erythrocytes begin their maturation sequence in red bone marrow from nucleated cells known as____. | hematopoietic stem cells. |
| Because T cells attack pathogens more directly, T-cell immune mechanisms are classified as _____ immunity. | cell-mediated |
| Each cortical nodule is composed of packed lymphocytes that surround a less dense area called a ____. | germinal center. |
| The _____ of each lung lies against the ribs and is rounded to match the contours of the thoracic cavity. | costal surface |
| The microscopic cilia function to ___. | move mucus toward the pharynx. |