Answer:
Carbon dioxcide and oxegen
Explanation:
Answer:
"The external muscle helps maintain continence and keep stool in the rectum. The inner muscle is not under voluntary control but rather is controlled by the autonomic nervous system. The external sphincter can be voluntarily controlled, meaning it can be clenched and unclenched"
Explanation:
Written is the answer because a pharmacist always uses written
Answer:
b. Tunica Intima, Tunica Media, Tunica Adventitia.
Explanation:
The Tunica Intima is the layer that is in direct contact with the flowing blood. Meaning that it is the one that faces the lumen of the vessel. Following the Tunica Intima, the vessel has the Tunica Media, and finally after this one, the Tunica Adventitia. The latter is the most external layer.
