Answer: The correct answer is option c.
Explanation:
Cardiac conduction system is formed by specialized cardiac muscle cells which enable the heart to contract in coordinated fashion.
The main component of this system are:
- Sinoatrial node
- Atrioventricular node
- Bundle of His
- Branched bundle
- Punkinje fibers
SA node consists of cells known as pacemaker cells. These cells spontaneously generate action potentials which lead to the contraction of atria.
These potentials are then passed to AV node which relay them to bundle of His. These bundles are branched into right and left bundle which ultimately transfer these potentials to Purkinje fibers.
The potentials from these fibers lead to the contraction of ventricles.
Answer:
The correct answer is: the peripheral nervous system.
Explanation:
The Peripheral Nervous System (PNS) is one of the two anatomical divisions of the nervous system. The PNS is composed of nerves and ganglia that are outside of the brain and spinal cord.
The function of the PNS is to <u>transmit the information from the body to the Central Nervous System and vice-versa</u>.
Unlike the CNS, the PNS is <u>not protected by bones</u> so it's much more exposed to mechanical injuries.
Answer:
fibrous connective tissue
Explanation:
Ligaments and tendons are both made up of fibrous connective tissue, but that’s about where the similarity ends. Ligaments appear as crisscross bands that attach bone to bone and help stabilize joints. For example, the anterior cruciate ligament (ACL) attaches the thighbone to the shinbone, stabilizing the knee joint.
Turtles can breath in and out of water. Fish only can breath in water.
