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1) maxillary artery 2) superficial temporal artery
The are two paired arteries that supply the head. You have the carotid arteries (where you take your pulse in the neck). There are also paired vertebral arteries that run up through the transverse foramen in the cervical vertebrae.
Carotid arteries supply blood to brain . Blood is supplied to the entire brain by 2 pairs of arteries: the internal carotid arteries and vertebral arteries. The right and left vertebral arteries come together at the base of the brain to form a single basilar artery. The basilar artery joins the blood supply of the internal carotid arteries in a ring at the base of the brain. This ring of arteries is called the circle of Willis. The circle of Willis provides a safety mechanism...if one of the arteries gets blocked, the "circle" will still provide the brain with blood.
It is the Internal carotid and the vertebral arteries. The vertebral arteries join to form the basilar artery which supply the midbrain and the cerebellum. The internal carotid branches divides to form the left and right internal carotids which supply the left and right side of the brain respectively. Hope this helps...feel free to ask if you don't understand. cheers Faith
External iliac arteries
No - an invertebrate has no internal skeleton. Snakes have a well-defined internal skeleton - including over 400 pairs of ribs !
Blood vessels that supply the brain are the two carotid arteries and the two vertebral arteries.- From the left ventricle, blood flows into the aorta and the common carotid arteries supply the frontal portion of the brain through the inner carotid arteries, which lead to blood vessels such as the three pairs of cerebral arteries (anterior, middle, posterior).- From the left ventricle, blood flows from the arch of the aorta into the paired subclavian arteries, and then to the vertebral arteries, which supply the rear and lower parts of the brain through the basilar artery (which ends at the posterior cerebral arteries).* Within the brain, cross-connections between these arteries (called the Circle of Willis) provide some redundancy should any of the arteries become severed or blocked.
There are two muscle pairs that help form the natural abdominal girdle The Internal Oblique and the Transversus Abdominis form the shape of the abdomen.
There are actually four: The External oblique, internal oblique, rectus abdominis and the transversus abdominis.
Millipedes have two pairs of spiracles on each segment that they breathe through. The spiracles open into an internal pouch and connects to the trachea.
1) internal jugular 2) external jugular 3) vertebral vein
Ribs are a series of curved bones that are articulated with the vertebrae and occur in pairs, certain pairs being connected with the sternum and forming the thoracic wall. The sternum and ribs form the "rib cage" which supports and protects the lungs.