<span>Homologous
structures are framework where the parts of the body is similar in
structure to different species of common ancestry. The way structures develop in
embryos and the pattern in which they appeared over evolutionary history. In
addition, the evidence of this common ancestry can be seen in the structure and development
of these homologous structures, even if the existence of these structures
adapted to different function as the result from a collective ancestry. </span>
Answer:
The correct option is: possess both hydrophilic and hydrophobic properties.
Explanation:
Amphipathic, also known as the amphiphilic or amphiphile, are the chemical molecules or compounds that have <u>both the hydrophilic or lipophobic (polar) and hydrophobic or lipophilic (non-polar) properties.</u>
An amphipathic molecule has a lipophilic group or end and a hydrophilic group or end.
Some of the examples of amphipathic molecules are phospholipids, glycolipids, cholesterol, bile acids, saponins, soaps and detergents.
Answer:
somatic motor neuron hyperexcitability; inhibition
The neuronal circuitry to skeletal muscles involves neurons that stimulate contractions and those that inhibit contractions. The muscle spindles and Golgi tendon organs are involved in maintaining the proper muscle tonus (resting muscle tension); they work by signaling the CNS. Since tetanus involves SOMATIC MOTOR NEURON HYPEREXCITABILITY, the neurons involved in muscle contraction INHIBITION are affected.
Explanation:
Tetanus is a infection that is caused by a bacteria called Clostridium tetani. It occurs when open wounds in the body are not properly treated and they get infected. This wound can be caused by stepping on a nail or sharp object like broken bottle.
When tetanus enters an open wound present on the body, it attacks the neurons in the body, specifically the somatic motor neurons. Tetanus hinders the release of neurotransmitters and blocks the inhibitory properties of the muscles. These causes the muscles of the body to contract unhindered and uncontrollably resulting in spasms. This can also be referred to as neuronal hyperexcitabilty.
Lymph vessels are devoted to the preclusion of the lip from the lymph capillaries which are mainly concerned with absorption of interstitial fluid from the tissues these vessels drain into the right and left subclavian vans respectively.
