Protective membranous coverings that lie between bony coverings and the soft tissues of the cns are called the <u>meninges</u>
<h3>What are the brain meninges?</h3>
The brain meninges are the three protective membranous thin layers of tissue that cover and protect the brain and spinal cord of the nervous system. These meninges are:
- The dura mater
- Arachnoid mater
- Pia mater
So therefore, the protective membranous coverings that lie between bony coverings and the soft tissues of the cns are called the meninges
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The tissue in which all cells contact the basement membrane, even though some appear (at first glance) to be stacked on top of others, is called pseudostratified <span>columnar epithelium.
</span> The pseudostratified columnar epithelium has epithelial cells whose nucleis are at different levels.
<span>The upper respiratory tract epithelium is example of this type of epithelium.</span>
Answer:
The correct answer is option 'D':During ventricular systole, the left ventricle generates more than 120 mmHg
.
Explanation:
A blood pressure of 120 mm Hg means that during the ventricular systole the blood leaves the ventricles to the rest parts of the body the pressure that it exerts on the walls of the arteries equals pressure exerted by a column of 120 mm of mercury. At the peak flow the pressure should be just exceed 120mm Hg in order to initiate circulation. The excess pressure is needed as we need to overcome the resistance of the blood in the arteries that is at a pressure of 120 mmHg
DNA<span> structure. </span>DNA is made<span> up of </span>molecules<span> called </span>nucleotides<span>. Each </span>nucleotide<span>contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C).</span>
Answer:
The answer is option D. Secretion is regulated by a hypothalamus regulatory hormone
Explanation:
The hypothalamus is the connection between the nervous system and the endocrine system. It regulates the function of the pituitary gland by promoting or inhibiting hormone release by the pituitary gland. The hypothalamus secretes corticotropin releasing hormone which act on the anterior pituitary gland to secrete ACTH to control the production of cortisol and androgens.
