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Small arteries
Small arteries have three to eight layers of smooth muscle in the tunica media and an internal elastic lamina is generally present. The smallest arteries, like the one shown on the right, lead into arterioles, which are the main regulators of blood pressure. 700x, 1000x
![Small artery <p>Small arteries have three to eight layers of smooth muscle in the tunica media and an internal elastic lamina is generally present. The smallest arteries, like the one shown on the right, lead into arterioles, which are the main regulators of blood pressure. 700x, 1000x</p>](https://digitalhistology.org/wp-content/uploads/2017/07/Or.CV_.V.A-19-1-ping.png)
Small artery
Small arteries have three to eight layers of smooth muscle in the tunica media and an internal elastic lamina is generally present. The smallest arteries, like the one shown on the right, lead into arterioles, which are the main regulators of blood pressure. 700x, 1000x
![Arteriole <p>Small arteries have three to eight layers of smooth muscle in the tunica media and an internal elastic lamina is generally present. The smallest arteries, like the one shown on the right, lead into arterioles, which are the main regulators of blood pressure. 700x, 1000x</p>](https://digitalhistology.org/wp-content/uploads/2017/07/Or.CV_.V.A-19-2-ping.png)
Arteriole
Small arteries have three to eight layers of smooth muscle in the tunica media and an internal elastic lamina is generally present. The smallest arteries, like the one shown on the right, lead into arterioles, which are the main regulators of blood pressure. 700x, 1000x
![Endothelium of tunica intima <p>Small arteries have three to eight layers of smooth muscle in the tunica media and an internal elastic lamina is generally present. The smallest arteries, like the one shown on the right, lead into arterioles, which are the main regulators of blood pressure. 700x, 1000x</p>](https://digitalhistology.org/wp-content/uploads/2017/07/Or.CV_.V.A-19-3-ping.png)
Endothelium of tunica intima
Small arteries have three to eight layers of smooth muscle in the tunica media and an internal elastic lamina is generally present. The smallest arteries, like the one shown on the right, lead into arterioles, which are the main regulators of blood pressure. 700x, 1000x
![- Internal elastic lamina <p>Small arteries have three to eight layers of smooth muscle in the tunica media and an internal elastic lamina is generally present. The smallest arteries, like the one shown on the right, lead into arterioles, which are the main regulators of blood pressure. 700x, 1000x</p>](https://digitalhistology.org/wp-content/uploads/2017/07/Or.CV_.V.A-19-4-ping.png)
- Internal elastic lamina
Small arteries have three to eight layers of smooth muscle in the tunica media and an internal elastic lamina is generally present. The smallest arteries, like the one shown on the right, lead into arterioles, which are the main regulators of blood pressure. 700x, 1000x
![Tunica media <p>Small arteries have three to eight layers of smooth muscle in the tunica media and an internal elastic lamina is generally present. The smallest arteries, like the one shown on the right, lead into arterioles, which are the main regulators of blood pressure. 700x, 1000x</p>](https://digitalhistology.org/wp-content/uploads/2017/07/Or.CV_.V.A-19-5-ping.png)
Tunica media
Small arteries have three to eight layers of smooth muscle in the tunica media and an internal elastic lamina is generally present. The smallest arteries, like the one shown on the right, lead into arterioles, which are the main regulators of blood pressure. 700x, 1000x
![Tunica adventitia <p>Small arteries have three to eight layers of smooth muscle in the tunica media and an internal elastic lamina is generally present. The smallest arteries, like the one shown on the right, lead into arterioles, which are the main regulators of blood pressure. 700x, 1000x</p>](https://digitalhistology.org/wp-content/uploads/2017/07/Or.CV_.V.A-19-6-ping.png)
Tunica adventitia
Small arteries have three to eight layers of smooth muscle in the tunica media and an internal elastic lamina is generally present. The smallest arteries, like the one shown on the right, lead into arterioles, which are the main regulators of blood pressure. 700x, 1000x
![Venule <p>Small arteries have three to eight layers of smooth muscle in the tunica media and an internal elastic lamina is generally present. The smallest arteries, like the one shown on the right, lead into arterioles, which are the main regulators of blood pressure. 700x, 1000x</p>](https://digitalhistology.org/wp-content/uploads/2017/07/Or.CV_.V.A-19-7-ping.png)
Venule
Small arteries have three to eight layers of smooth muscle in the tunica media and an internal elastic lamina is generally present. The smallest arteries, like the one shown on the right, lead into arterioles, which are the main regulators of blood pressure. 700x, 1000x
![Peripheral nerve <p>Small arteries have three to eight layers of smooth muscle in the tunica media and an internal elastic lamina is generally present. The smallest arteries, like the one shown on the right, lead into arterioles, which are the main regulators of blood pressure. 700x, 1000x</p>](https://digitalhistology.org/wp-content/uploads/2017/07/Or.CV_.V.A-19-8-ping.png)
Peripheral nerve
Small arteries have three to eight layers of smooth muscle in the tunica media and an internal elastic lamina is generally present. The smallest arteries, like the one shown on the right, lead into arterioles, which are the main regulators of blood pressure. 700x, 1000x