What does endocrine system regulate? a) blood flow b) voluntary muscle impulses c) involuntary muscle contractions d) hormone and glandular secretations

Endocrine system regulates D Hormonal and glandular secretion.

Explanation:

Endrocrine system  composed of various glands that secrete hormones or chemical messengers. Those glands include Pituitary gland,Thyroid gland, Adrenal gland etc.

           These glands are well known for secretion of various hormones those regulate various physiological activities of our body.

           For example Anterior lobe of pituitary gland secretes growth hormones which stimulates the growth of various body parts of our body.

        Thyroid hormone secretes T3 and T4 that regulates basal metabolic rate, body temperature, oxygen consumption and also iodine utilization.

         Adrenal cortex secretes Glucocorticoid hormone that helps to regulate the blood glucose level as well Protein Metabolism of our body.

straight probes are used primarily for measuring flow as it is approaching the test area. its geometry allows the probe to be mounted so that it is in the direct line of airflow.