Please help!!

Biology

1 answer:

grin007 [14]3 years ago

7 0

Answer:

Humans have things that we don't use such as an appendix. Monkeys can walk on two feet. Parrots can talk. Humans have spinal problems because our spine isn't made to be vertical. We share alot of things with other animals. Think about the what you share with a dog, pig, or a bat. For instance animals that only eat plants have teeth like we humans do. Animals that only eat plants have long digestive processes like humans do. They also do not have claws, they instead have thinner nails that an peel, and tear fruit, and other plantage.

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Cerebrospinal fluid circulates within the ventricles of the brain and in the subarachnoid space outside the brain. Cerebrospinal

irina1246 [14]

Answer:

true

Explanation:

Cerebrospinal fluids is a colorless fluid that is secreted in the choroid plexus,and circulates in the ventricles system and sub -aranchinoid space of the brain and spinal cord. its provides nutrients to the surrounding neurons, cushions the effects of trauma, pressure, acts as buffer and provides protection through immune system .

it plays a vital role in regulating blood flow, through a process called cerebral auto regulation,This is needed to maintain efficient cerebral blood flow of oxygen and other metabolites, and withdraw of metabolic wastes from the brain.

in order to analyze it to diagnose some neurological diseases its sample is usually taken out in a process called lumbar puncture.

4 0

3 years ago

The sternal angleis the least likely part of A. the sternum to fracture in the elderly. B. occurs at the sternoclavicular joint.

Bumek [7]

Sternal angle marks the joint between the sternum and the 2nd rib.

Option E.

<h3><u>Explanation:</u></h3>

Sternum is the breast bone which is a dorsi ventrally flattened bone present in thorax of human. It gives the support for the ribs where the ribs join. A sternum has three parts - Manubrium sterni, body of sternum and the xyphoid process.

The sternum has attachments of a total of 10 ribs and clavicle. The clavicle and the first rib joins in the Manubrium sterni, and the 3rd to 10th rib joins in the body of sternum. The 2nd rib joins in a facet which is partly in Manubrium sterni and partly in body of sternum. This place id also called the sternal angle. So the sternal angle marks the joint of 2nd rib to sternum.