Determine the outcome of each hypothetical situation. Then drag each label to th

Question

Determine the outcome of each hypothetical situation. Then drag each label to the appropriate box. Would flexibility of the intervertebral discs increase or decrease if the fibrocartilage were comprised of elastic cartilage? Would diffusion rates of oxygen increase or decrease if alveolar lining were made of stratified epithelium? Would elasticity of the ears increase or decrease if the elastic cartilage were replaced with bone? Would tissue damage increase or decrease if the oral cavity were composed of keratinized tissue? Would protection of the brain increase or decrease if the bony tissues were replaced with hyaline cartilage? Would rate of infection increase or decrease if the epidermis were composed of pseudostratified epithelium? Would vascularity of ligaments increase or decrease if they were made of bone? Would autonomic control of digestive motility increase or decrease if the intestines contained skeletal muscle?

Explanation / Answer

1. The flexibility of the intervertebral discs will increase if the Fibrocartilage were comprised of elastic cartilage. In fibrocartilage fibrous tissues are present are present which makes it more rigid and decrease the elasticity, whereas if the cartilage is made of elastic cartilage, it will have the flexibility and can easily adapt changes.

2. The elasticity of ears will decrease if the elastic cartilage is replaced with bone. The bone has a very rigid structure. The cells are closely connected to each other, so bone is completely inelastic. So if the elastic cartilage is replaced with bone it will decrease the elasticity of ear.

3. If the brain outer surface is replaced with hyaline cartilage it will decrease the protection of brain because the cartilage is a loosely packed cells and is delicate compared to bones and is easily damaged during trauma. The skull consists of bone and it is a very rigid structure and does not damage easily. So hyaline cartilage is not suitable for brain protection.

4. The vascularity of the ligaments will decrease if they are made up of bones. The bones do not have vessels so they will have vascularity. The ligaments are made up of dense collagen fibres and has vascular tissues in it. So they have high vascularity.

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