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Vikentia [17]
3 years ago
10

Unidirectional flow in the heart is ensured because the heart contains ___________.

Biology
1 answer:
jekas [21]3 years ago
3 0
<span>Unidirectional flow in the heart is ensured because the heart contains valves that prevent backflow.

These valves keep the flow of the heart going in one direction (hence the name "unidirectional").</span>
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Correctly match the following: - fibrous joint between radius and ulna - fibrous joint that unites bones of the skull - articula
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Answer:

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- the epiphyseal plate: F. synchondrosis

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- fibrocartilagenous fluid filled sacs outside the joint cavity: G. meniscus

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Explanation:

The syndesmosis can be defined as a fibrous joint held together by ligaments. Sutures are fibrous joints of tissue that link the cranial bones of the skull. A gomphosis is a mobile fibrous that binds the teeth into sockets in the mandible and maxilla. Synovial joints are joints found between bones that move against each other (e.g., shoulder bones). They (synovial joints) are the most common class of joints found in the body. A symphysis is a cartilaginous, slightly movable, joint between two bones. A saddle is a synovial joint whose opposing surfaces are concave and convex, respectively. Osteoarthritis is the most common type of arthritis, this condition occurs when the protective cartilage surrounding the bones wears away over time. Finally, eversion refers to a type of movement of the foot which occurs in the auctioneering joint.

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